I'm sorry to hear about the loss of your mom. I want you to know you are not alone and it does get easier over time although the pain never really goes away, it just gets more faint. Make sure you talk about it as much as you need to. There is no "normal" amount of time to grieve. Everyone is different.

For context, I lost my dad 2 months ago. My mom and I are alone now but we've made due. The two most important things I can recommend to you are:

1) Surround yourself with a good support system. This means family, friends, etc. and talk about your feelings with people you trust. If you don't have anyone, seek help from a mental health professional. Going to one doesn't mean there's anything wrong with you.

2) Go out and do stuff to distract yourself. I'm normally not very adventurous but I've forced myself to become a tourist in my own city and explore. It helps.

I hope this brings some comfort. I wish you the very best, internet friend.