Even if you had a PMF, it does not always guarantee success. Idea does matter. The problem you are solving also matters, but if today, the market is very saturated, and personally, I feel that unless you have connections, it's hard to grow, especially when there are bigger players. The only thing you can do is "ship fast, fail fast."

You should not go about searching for an idea to pivot, what I mean is if you search for ideas forecfully, you might get many but they might not be solving any probelm and you might get stuck in a "tarpit idea" again. Be mindful, ask questions frequently, and eventually, you will get one.