Hi Debala,
I hope you are well. A few of the things I have done in the past eight months to alleviate my anxiety or fears and grief when overwhelmed:
Walk, walk, walk, drink water, write in a journal, make scrapbooks, put photos together in boxes or frames, mostly cry and just struggle through each day, laugh with friends, pet our dog!, eat healthy, took a day trip to New York City, scenic drives, play Pitch (cards), write old friends some long old fashioned notes, they love them.
Snail mail is fun to get. I have learned to knit and I am in a group. Watch movies, relax. Cry and remember my husband. Plan a fundraiser for June 1st to celebrate his memories with all of the people who miss him and understand. Mostly in the beginning- talk to one or two people exclusively about my husband's death. Tell the story.
Therapy, grief support groups. COMING on HERE and reading old posts. I continue to read and cry over the beautiful childrens' photos.
Cook using a crockpot. A million distractions. And a million times being present with my feelings, it is grief and it is hard.
Take any ideas from above or leave them as with all advice; you know best what helps.
I am so very sorry for your loss of your baby sister. Prayers go out to you. Terri