Relaxed easy going healthy and happy parsonality

I'm a single dad with a five year old son. I get to see him fortnightly. I work on the railways and do a three shift rota. I come and at odd times do won't interfere with others unless they are on shift too. I tend to keep to myself. I design stuff and 3d print as a hobby. Love lwalking in parks with my boy and use the gym frequently. I'm reasonably health and stay away from junk food. I'm a non smoker and suffer from asthma so smoke dies effect me.