How do i make myself care

Loads of kids take music lessons and then drop it as an adult, if you really liked it you would have kept playing. Definitely don't feel bad about that part. But for the other stuff... it sounds like you agree with her. College will probably be a great new start for you! It's not like high school, there is a place in college for the quiet, introverted types. Just make a huge effort at the start with like-minded people, say yes to the invitations even when you feel like being alone, and before you know it you'll actually be looking forward to hanging out with your friends.

Find something in life that you like, must be something that moves you forward in life... Video games are a virtual world.. find somethig challenging in the real world.. (rock climbing, SCUBA, motorcycles, something you learn to get better at).. as you build your life around this you will move futher in life as youwork to fund this hobby...you might even find way to turn it into a job

At some point, many people realize that living and doing things to please others isn't enough reason to continue.

To change, you'll probably have to find something that you want to do. It could be almost anything.

your mother should have done a better job socialising you and a baby/toddler, her dream of you playing piano is her own dream.. not yours.. people who play piano are poncey, i suggest you start smoking weed and try hang out once and a while with other like minded people.. everything will work out in time. juat get a job and dont be a bum who still lives at home at 25

Alright folks, the thing about it being gay was a joke. Damn.

Anyways, the bigger question here is -
Why do some parents insist on putting their kids in music lessons even when the kid is not interested?

My step-parents did that, it was guitar lessons. I THOUGHT I wanted to learn after seeing rock videos on Mtv but I got to the lessons and they were trying to teach me crap like "happy birthday" or "love me tender". I lost interest real quick. After a few months, they quit taking me.

Enjoying playing piano is the biggest sign of male homosexuality there is. It starts out just being gay but then you decide you want to be a woman so more men will sleep with you so you start transitioning to a woman and eventually look like Caitlyn Jenner. Wouldn't THAT be something to look forward to?
Side note - am I the only one who wonders what Kim Kardashian's butt smells like?

But about being a loner, allow me to quote Charles Manson here - "I don't care about your society, the public is a bunch of assholes."

The things that your mother is complaining you don't do honestly seem pretty useless anyway.

You need to stop caring about pleasing your mother so much and focus on what makes you happy! As long as you are doing something other that playing video games (like school or work) then you are very normal. You need to let your mom know what makes you happy. It’s your life not hers! I’m sure she just wants what’s best for you and her idea of what’s best for you is different than yours.

I can't really argue with anyone who isn't fond of video games or the excessive playing thereof. I don't see the harm in learning to play piano. I wish my parents could have been able to afford a piano for my sister and I to learn to play. I can play the flute, and honestly I wish I had learned to play more musical instruments.