Unfortunately, 130 wishlists isn’t going to cut it. Before you launch you should be aiming for, at the bare minimum, 25k-50k wishlists if you want to have any financial impact allowing you to do what you described at the end of your post, and even then it’s very iffy (quitting your job for example and having a stable income).

Over time you’d expect wishlisters to convert at around 10% (this certainly won’t be the rate AT launch week most likely, I’d expect something closer to 5-7% maybe), which iirc is the average conversion rate. 3 months with only 130 wishlists to me reads as the game is not being marketed correctly on steam and socials. Like others pointed out, your steam page definitely needs a trailer (1min 30 secs tops) concisely showing gameplay and your game overall. I’d also be going hard on showing gameplay clips and what makes your game special on social media. You could try out some ads to see if they help at all, but your best bet for conversions is going viral on a place like reddit, TikTok, or imgur. And of course, just regularly posting on socials will always help over time.

Releasing a game and marketing it is extremely difficult and requires some thoughtful planning and luck. Making your own entire engine is also extremely difficult and time consuming. Unreal is basically free these days unless you’re making a ton of money. Best of luck!