It's rough when people who are important in our lives aren't "there for us" the way we feel we need them to be. My mom is (excuse me, WAS) like that, too. I attribute that to the way she was raised (her mom wasn't supportive either) & the fact that she had 7 of us kids. To be honest, my 2 older sisters were
really, really needy & made
NO bones about it. They now hold it against her, which is soooo wrong.
My dad was really the supportive one for me, but he passed away in April 2000.
I miss him when I need someone to ask me how my journey is going, how far I'm walking or if I need a new hole punched in my belt. It was the little things that really helped me along the way.
You can do this!
Maybe at some time when all is quiet & it is just the 2 of you maybe just maybe you can approach her with the subject. I don't know what your relationship is like, but maybe she can try to give you what you need. I know that it took a long time for my mom to come around to helping me in the way I need. It took her years & years to know that mentioning my weight & giving me literature was not the way to reach me. That just listening & being there was what I really wanted/needed.
Perhaps before you talk to her you have a few ideas of what you'd like from her, even if it's just an encouraging word. Parents, just like all other human beings, are
not mind-readers. They don't know what would help their children, simply because we do not come with an instruction manual. Also there comes a time when we "children" need to be able to talk to our parents as "real people"/"adults"...with respect for being our parent but also as just another adult. Remember...they were once your age...even if it was nearly 40 years ago like in my Mom's case.
I wish you well.
Let us know how things are going. If you have any questions about relating to Mom, let me know. I've been there & more than willing to help. Just ask!