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Take as much time as you need. Let your emotions out. Keep your beloved grandparent in your heart and memories. Be aware of your triggers. Support and get support from your other family members. Remember to take care of yourself.
Don't listen to the people who tell you that there's a timeline when it comes to grief. Some people take a lot less time than others when it comes to moving on after the passing of a loved one, and you shouldn't feel down on yourself if you feel like you've been in grief for a long time. The important thing is that you take the time to fully process your feelings instead of going through the motions of moving on right away, and repressing how you really feel.  Know that there's no firm line you cross from grieving to "moving on," and that moving on doesn't mean that you've forgotten your grandparent and are no longer sad about the loss. Every person should take as much time as he or she needs. Of course, if many, many months have gone by, or even a year or two, and you feel like you're still so deep in grief that you're finding it hard to function, then getting professional help could be a way to move forward. Another way to accept your feelings is to cry, scream, be angry, or just to do whatever you need to do to get your feelings out. You don't want to hold back your tears or repress your emotions because that will lead you to have a harder time coping down the line. You may be wary of showing your emotions, especially if a grieving parent or your other grandparent needs you for support, but you should let those feelings out some time, whether it's with a friend, an understanding family member, or by yourself.  Taking time just to cry can be very therapeutic. That said, don't feel guilty or confused if you're not the crying type and you can't find tears even though you're deeply sad. This can also be a good time to write in your journal about how you're feeling. It can help you channel your feelings in a more organized and quiet way. Don't think that there will come a point when you stop thinking about your beloved grandparent entirely. You can always keep him or her in your heart and memory. Allow yourself to think about the good times you shared, the conversations you had, and the trips you took together. And if you had some disagreements or bad times together, you can think about that too. It's not about only treasuring the good times and forgetting the bad, but about honoring the entire person.  Write down anything you remember about your grandparent. This can help you forever keep him or her in your heart. Look at photographs of you with your grandparent to feel at peace. Of course, some times of the year or some places will make it harder for you to cope with the loss of a grandparent. Maybe you should avoid the lake where you used to go fishing with your grandfather, or the diner where your grandmother always took you to get ice cream, for a while until you feel ready to face your favorite places. Maybe Thanksgiving or Christmas will be especially hard because you associate those holidays with spending time with your grandparents. Knowing what those triggers are can help you either avoid them, or find extra support if you can't.  This doesn't mean that you should stop doing all of the things you loved to do with your grandparent forever. It just means you may need a bit of time away from those things until you feel more stable and at peace. Unfortunately, some things like holidays may always be a little bit harder. But with time, as well as support from your family, you will be able to enjoy them again while thinking of your grandparent at the same time. One of the best things you can do to accept your feelings is to talk to your other family members about the loss. Your parents may really need your support, and you should be there for them. If you have another living grandparent, you should also be there for him or her through this difficult time. You can both share your own feelings while supporting your loved ones, and you shouldn't feel pressure to be strong all the time. The most important thing is that you should be present. Don't be afraid to share your feelings. Spend more time around your family members than usual instead of holing up in your room with your sadness. Even if they may not ask for your company, they'll appreciate it. One important thing to keep in mind as you deal with the loss of your grandparent is that you shouldn't forget to take care of yourself. Make sure you get enough rest — without spending all day in bed — eat three healthy meals a day, and take the time to go outside and to socialize. Taking care of other family members may be important, but you shouldn't completely sacrifice your own well-being in the processes. Showering regularly and maintaining your hygiene can also help you feel more in control of your life. Though you will still feel unsettled, sticking to a healthy routine can make a big difference.  Even if you feel absolutely horrible, just showering and putting on clean clothes can make you feel better than spending all day in bed without grooming yourself. Getting enough rest can help you feel more in control of your emotions. If you're exhausted from not getting enough sleep or feeling wonky from sleeping too much, then it will be harder for you to cope.