Need positive motivation in my life

SnoNight

I was athletic in high school. I played a lot of soccer, for high school and club sometimes two practices in one afternoon, but injuries have held me back to where I was physically; Achilles tendinitis and runner's knee on my left side. I weighed ~130lbs and I'm 5'0" tall. And I've stayed the same height since now. I'm an inverted triangle shape which means I gain weight in my chest and stomach first and it's difficult to lose weight in these places.

Now I'm trying to get back at that weight. I thought I was overweight/fat because my family (dad, mom, and older brother) basically always told me and criticized me on that I needed to lose more weight when actually I was at a good place; My BMI was fine. However, my dad 'joked' about my weight, mom always pinched my back fat and asked when was the last time I went to the gym, and my older brother saying things like 'I need to sweat more' etc. So my self-esteem was damage (was able to improve it away from these people during college). Fast forward to now, I'm 170 lbs and would like to get down to 140 lbs. I've been actually trying to do this ever since graduating from college (4 years) by myself and no improvement.

I started lifting weights, like actual heavy weights, in addition to running, because I've read that you need to lift weights a lot to help in weight loss. I haven't noticed any progress, yet, but I'm just trying to get back into the swing of things.

The thing I need help on most is nutrition/eating. Sadly, I still live with my father and brothers so I still get them trying to micromanage my weight. I try suggesting to my father to not buy soda, ice cream, etc, but he just won't listen. He said in the past 'No, you're not going to put us on that type of food' and 'No, I need [something sweet]!' and 'Then why hasn't anyone else in this household gained weight!?' And yes, he does sometimes purchase vegetables and fruits, however, we only go grocery shopping once a month (money problems) and when the healthy food is gone, there is nothing to eat but the processed, pre-packaged, and frozen food the rest of them usually eat.

I just need some positive motivation. All of my friends have moved on with their lives and I feel left behind so I no longer can contact them. Yes, I've tried asking them multiple times throughout my life to stop with belittling me to try and 'motivate' me to lose weight, but they won't listen. And, no, I can't move out [I have no money and I've been struggling looking for employment].