You sound a bit like me. 
Look at the LD’s you had, look at how many LD’s some people have on this forum, look at all the great stuff they do in their dreams, normal and lucid ones, at all the things you can experience, too! Is that really too little reward you earned and are able to earn? Whenever you lose interest in LD’ing, read other people’s DJ. 
I suggest you read this guide, it has very good pieces of advice about DR and keeping a DJ. Your DJ should be something personal, it should feel special to you. It doesn’t matter how you keep it, which media you use, what it looks like, as long as you’re comfortable with it. Always look at the nice parts of a dream and try to go into as much detail as possible, you will be surprised about how much you can write about a single fragment if you describe everything you remember! If only writing your dreams down is too boring for you, you can do a lot more with them: analyzing, categorizing, labeling, drawing…
It’s important that you pick at least two RC’s (one main one and a back-up one) which you think will work for you. RC’s should be done every time you encounter a DS or something dream-like or unusual happens. Really question if you’re dreaming or awake, make a little quiz out of it, take your time, answer truthfully and observe and judge what’s happening around you and in your mind.
Hope this was a bit helpful. (And welcome to the forum!)