@Volkien my case is similar to your's but different I was born with a great physic, great athleticism and an extremely high metabolism (i lose weight faster than I eat)
But when I was five I suffered a severe head injury that ruined my vision (now terrible Short sighted and it keeps getting worse), increase my metabolism (to the point that doing even 10 squats is enough to get me tired) and to top it off ruined my body co-ordination(I don't know when I'm hungry until I'm starving to near death, urination is only felt when it starts to hurt,i lose control over body co-ordination for a while and don't know what I'm doing for sometimes a few hours and even more)
So getting a second life like our MC here, where I got a good body I would train like crazy because my body is s*t currently