I think a big part of fitness is the mental side of it, as you need the discipline to train and eat properly. Having something to aim for and a program to follow to achieve that, with various smaller goals/targets along the way can be a big help.
If you're mainly going for strength, could you test yourself every few months and use that as motivation? Is there anyone you could go with to compete against?
If you're mainly going for strength, could you test yourself every few months and use that as motivation? Is there anyone you could go with to compete against?