Really, something that keeps me loving the comic is the fanbase. It sounds kind of cliche, I'm aware, but engaging with and creating fanworks has really helped me out. Even if that's not something that interests you, I think it's worth talking to other people about hypotheticals stuff like this - even if it never comes to fruition, it's incredibly fun.

In addition, it helps to be able to take the ebbs and flows of the franchise, its highs and lows. Take the new comics, the pilot, the forums, etc etc with a stride in your step. You can choose to ignore what you will, but don't let anyone else tell you how to enjoy Homestuck. Something else I like to do is to take a look at fan creations from the older days of the fandom, which is how I was introduced to the comic as a whole. Comic dubs, fansongs, lyricstucks, etc etc.

The most important thing, really, is to just have fun and enjoy yourself. Find a niche corner of the community you enjoy and enjoy your time there.

Hopefully this helps you out <3