1st step away from the Heartbreaker is always the hardest.
Keep on. owob
(Though 3E was... Actually 3E did exactly what you do, but instead of turning a boardgame-type into TRPG, they turned a computer game into TRPG. Cause before 3E, all those "builds" & "combinations" didn't actually formally exist, and it was way closer to what you'd see in MOBA & F2PMMO today than most other stuffs back then... Though you can probably say they influenced each other as well.
But they pumped loads of $$$ and people into it, so it worked out for them. And they got the DnD brand so that meant they pretty much got ALL the customers already.
...Well, don't compare ourselves with the big guns. There's that.
Play more games. Play more different
games. That'd keep you from making even more heartbreakers at least.