(((((OnlyMe)))))) I am so, so very sorry that you have lost your Mom. I can only echo what others have said in that, you'll always miss her and while it will take some time, you will come to know that she is always with you, you will hear her saying things, see something that she would like, hear her favorite song at odd times when you are thinking of her.
I do not mean to make this about me but I just wanted to share this to maybe give you some comfort - my Mom, who was the person that I loved most in this world, died of cancer several years ago. A few years ago, the night before I was due to fly for vacation, I had a dream that the plane that I was on was falling out of the sky (I am not afraid of flying) and everyone on board was screamining and I was absolutely terrified for a second - and then a thought came through in my dream mind and I heard myself saying "See you in a minute Mom" and I was no longer terrified. In my dream this weird kind of peace came over me and it stayed with me once I woke up. I tell you this to hope that you find that same kind of peace.

PM me if you need to talk - take care of yourself - there are no "right" ways to deal with grief - everyone is different. Cry if you want to, laugh if, in remembering the good times, you want to. Do want you need to do - for you - that is what your Mom would want you to do.