Your post and tribute to your mom really touched me - You poor thing, I wish I could give you a hug!
There is no easy way to grieve for someone you loved so much - You are going through one of the hardest things anyone ever has to deal with - losing your beloved mom - and so there is no perfect way to act.
Sometimes you'll just cry at the littlest thing, and then other days you may find yourself laughing at a memory or something funny you know your mom would have found funny too.
It does get better, because time just passes and the strong pain you feel gets a bit smaller - so that you don't hurt so much when you think of her.
Talk to her in your thoughts & prayers , and about her to others - I think that helps - Find something to do - exercise if you feel up to it, it will make you feel better about yourself, or consider taking a course in some school - these distractions will help you move on.
Also, think about what your mom would say to you if she saw you so sad and depressed - you know she wanted you to be happy and be able to move on as she must've done when she lost parents & others in her life.
Sometimes we're stronger than we think we are, and that's what will get you through all of this.
Take Care.......
HopeJ.