Feel like giving up

I feel like giving up. That’s all I feel right now. Like I have no hope of ever getting this right for myself, and since I can’t afford a fancy trainer and a fancy gym I can’t do it. I am destined to be this way, and will never get out of this rut without some kind of miracle. I know in my brain that this is not true, but it just hurts so much when I can only seem to get it right less then a third of the time. When I see all these other people doing it with hard work and diet, and I do the same thing and it doesn’t pay off what’s the point? I want to make myself healthier for my family, but how can I do this when my body seems to be fighting against me every step of the way. NO I’M NOT OKAY!