You say that you don't doubt that your mother loves you. Can you explain why you think this?
What I'm trying to get at is that perhaps her way of showing love is different, but not necessarily objectively worse, than yours. I understand completely how you feel - my parents think that "you don't tell people you love them - you show them through your actions", and think that displays of affection or saying "I love you" is very shallow and false.
It's taken me until my 40s to appreciate that they are also the product of their upbringing, just as I am, and that to be angry about this is only going to drag me down (like yours, this conversation wouldn't go the way I want it to with mine).
What I try to do is to appreciate the ways that they believe they are showing their love, and accept that, though this has definitely caused me harm (my mother, for example, has always been hyper--critical, because she wants me to try harder, do better, and let no one put me off. One of the results of this has been extremely low self-esteem, for example)
I have suffered from very serious mh issues for a number of years, but I have to accept, though my parents' attitude has been, in my perspective, extremely sub-optimal, they (mostly) haven't intended to cause harm. It doesn't mean at all that harm hasn't been caused - but from my perspective, getting angry won't change or undo that. And it will probably cause me more harm.
I do get sudden flares of anger, and have to remind myself that I can take another perspective if I choose - and it's not easy. But I think it brings me - me, not anyone else - more peace to try to reframe things.
I have learned, too, not to, for example, seek comfort from my parents. They couldn't provide comfort to me as a child, in the way that I wanted or needed - so why do I think all these years later they will have changed? Experience shows me they haven't - and Einstein defined insanity as doing the same thing but expecting a different result: so seeking comfort from them, whilst a natural desire, is not going to end the way I want it, and as a result, is going to lead me to sadness, anger and disappointment. So I have to - again for my own sake - accept this, and find other solutions. It sucks that it's this way, and a lot of people won't have this - but I try to remind myself that there will be things I take for granted that they don't experience.
It's very, very hard, though, and it's taken a very long time to get to the point I'm able to reframe it this way.
to you.