Am I a SELFISH person, need OPINIONS please!!!

So I've posted about my family on this site before in other threads, and their really screwed up attitudes towards body image and size, and the "unpleasant" comments I have gotten from them in the past. My parents think I was/am "fat" because I just ate unhealthy and was lazy. They still don't understand bulimia, binge eating, etc.

So now, that I'm no longer overweight, but still trying to tone up and lose some body fat (which I will follow up with some more muscle gain) by lifting weights and minimal cardio, mostly by eating right I want to really get out of my 2 steps forward, 1 step backward cycle. What I mean by this, is I feel like I am making progress, but it isn't as consistent as it was during the middle of my weight loss "journey".

When I started a couple months ago, I used whatever tools I had (dusty treadmill in the garage and old 5lb dumbbells, and a little calorie counter book I got in the mail for free) to lose weight, then eventually my mom forced me to sign up for the gym. She paid for it, and I know its a privilege but now my dad and sister also have memberships (they are both overweight, dad has been for 20 yrs, sister just recently) and I "have" to go with them. My mom is basically forcing me to go with them, but really I'm the one who "takes" them and I'm tired of it.

It's been about 2 months now this way (before I had later classes, so it wasn't so stressful) I'm the one who wakes up at 4am, eats/changes, then goes at 4:15 to wake them both up, goes BACK again at 4:25am to wake them up again or make sure they didn't fall back asleep, then pour their breakfast and water (b/c otherwise they take an extra 15 minutes), and do what feels like a billion other things. And on top of that, my dad likes to sit by the t.v., drink his coffee (half of which he wastes, leaves the cup in my car too if I tell him we need to leave) for 15 min. It's so stressful and complicated and I know it shouldn't be. I'm just so fed up with the pure CHAOS and done with it.

Going to the gym is my favorite part of the day. For the past 3 days (including today), I have not cared about them at all. I have not woken them up. I purposely slept around 9pm, woke up at 2:30-3am, had my protein bar and coffee and was out by 3:15, I ate in peace, worked out in peace (hit a lot of personal records finally), and had my post-workout meal. I saw them leave when I came back, they didn't really seem to care that I left w/o them, but my dad seemed a little surprised/unhappy. Am I selfish for doing this? I love my family, and obv want them to go to the gym too, but they just don't see it the way I do. My dad mostly hangs out with his gym buddies (in the sauna and pool) and my sister has just always been negative towards me. I on the other hand, must have my pre work out meal, warm up, 10 min cardio, free weights, some machines, maybe more cardio, post workout meal)

Again, I have told them many times they need to leave at ___ time and do ____ etc, but they're ALWAYS late and I always have to remind them a million times. If I do this one thing for myself to reach my goal, and eventually get ready to bulk for a competition (something I really really want to do), does it make me a bad person, cruel in a way?

Thank you


***I am really 20 btw