I think it's totally OK, normal and beneficial to want to experiment with different applications.
The main issue is after a few years you may feel like you have nothing to show for it and the best solution to that feeling that I've found is to document what you've learnt in a blog post. Over time you'll end up with a large personal knowledge base on which you can draw on when you want to and actally can finish a complex project. You'll also attract the right kind of people that can help you by putting your thoughts down in writing.
The idea is you want to slowly build yourself to be the kind of person that can finish a complex project in a weekend and the best way to do that is to constantly be in the high payoff space you get when you're learning something totally new.
The main issue is after a few years you may feel like you have nothing to show for it and the best solution to that feeling that I've found is to document what you've learnt in a blog post. Over time you'll end up with a large personal knowledge base on which you can draw on when you want to and actally can finish a complex project. You'll also attract the right kind of people that can help you by putting your thoughts down in writing.
The idea is you want to slowly build yourself to be the kind of person that can finish a complex project in a weekend and the best way to do that is to constantly be in the high payoff space you get when you're learning something totally new.