Torn up

So about five months ago my boyfriends broke up with me and I was devastated for awhile especially because he lived right next to me etc. Well the past month I finally feel like I've gotten over it and can care less and my one friend ended up telling me he likes me. I had a crush on him a long time ago so it almost feels like a dream but I know my mom will judge me because she thinks I still need time alone. I felt alright about pursing it further with him until she expressed that. Am I moving too fast? I know things don't have to work out with him but would it be bad to just try it out? Do I really need to tell her?