How can I stop being jealous of people still having their mothers and mine died?

child losing their mother especially daughers is HEARTBREAKING. My world feel apart when my mom was killed and I hated Mother's Day ever since. When I see people with their mothers, I get sad, jealous and hurt. I despise seeing my friends with their mothers and I went as far as shunning them. I hate and I mean HATE seeing daughters especially middle aged daughters with their mothers. I even envy kids visiting their moms or talking to their moms on the phone. I won't grow old and have a mom. I have my aunts and grandma but I prefer mom. I counted on her, I depended on her and now she is gone.
I hate mothers day! I dread that day coming next month.😭😭😭😭😭😭😂😂😂😂