First, always do what's fun for you. Personally, I feel like I'm better at making comments than memes. Spend some time going through latest and hot each time your on (probably already doing that), but make more comments on memes you think are funny. Pretty soon (at 6K points) you will be able to make custom meme comments with your own images, that's fun for me. There are a lot of good custom meme templates here
imgflip.com/m/templates might get some ideas for memes. You can ask me a question anytime, I'm usually on most days, sometimes off for a week here or there. Hope that helps:)