One of the hardest things with improving your health is finding something which can hold your attention and make you want to come back, once you breach this hurdle you start to enjoy more than just the activity, it's the feeling that you are benefiting yourself which you begin to enjoy. Try different things, when you find something you think you could enjoy, stick to it and give it a good chance to get you into a habit. It's about creating that habit which allows you to get results which in turn motivates you to keep going and push yourself. Find friends at the place you train or bring one along, training is always more enjoyable when there is someone else with you, maybe it's them distracting you from how hard it is, the social atmosphere of being able to talk to them, or the comfort of having someone else going through it with you, regardless of the reason it usually helps.