I won't pretend, it never gets better, but it does get easier. You'll always think of your momma, and you will always have pangs of wishing you could just tell your "aha" moments. That's is the grief of losing someone you love so much. You will stand strong, but it will take time. This is so new for you - not even 2 months.
You moved in with her. You will never have that little voice saying "What if I only ... ". No should haves, or could haves. YOU made the most of your time. Please look at that time as a blessing.
My mother passed 16 years ago & I still see or hear something & think "Oh mom - you should have seen/heard that one". I know in my heart she does - she is always close to me in my heart.
I send you a big hug and gentle thoughts. My love and prayers are with you.