Yeah self discipline is really hard, I mean Im sitting here on the computer rather than getting on with tidying up and decorating!
I think set up self improvement tasks that you will actually look forward too as you will more likely do them if they are something you enjoy. You could also set up a reward for yourself when you do something in your schedule that you don't particularly like. So for instance a quick pleasant activity after every chore such as after the washing up, make your favourite drink.
As for spiritual exploration I guess it depends on what you want from it. I guess research different spiritual practises and see which ones really speak to you, I think with spiritual stuff if you don't enjoy the practise then you are not gonna do it.
Also Minecraft.....what is that game all about? Its so popular, just wondered why? Not that I need another reason not to do my duties!