It took me 8 years of experience, but there is surely NO EASY WAY to make money trading options. You have to be an excellent risk controller. Can't recommend those three other ways.
You have to control risk no matter how you trade options. The tricky part about buying calls isn't the risk, it's the reward. Specifically, you have to be a good enough stock picker that there is some.
I may adjust occasionally, however, I'm not a big fan of adjusting losing trades so it is a "set and forget" type of system. I'm not looking for any particular delta, my approach is based on estimating future volatility and then selling 1 st. dev. away from the current spot price.