I'm sorry you missed out on one of the best investments of the decade, but there is a lot of room left for this to run.

Tesla's coming FSD and robotaxis still haven't been priced in. https://www.youtube.com/watch?v=hx7BXih7zx8

That's not two things, it's one, and I just don't see Tesla self driving panning out anytime soon. They've made wild claims about it for years now, but the actual product has progressed slowly. There have been far more failures than successes in that field over the past decade, and it's perpetually been given a "just a couple more years" timeline.

S&P500 has a total market cap of $31T. Tesla's current piece of that index is ~2%. A bubble pop would be unlikely to "take the whole economy with it" (thankfully).

When Tesla pops, it will potentially lose 80 or 90% of its values over a couple days/weeks. Even though that's only 2% of the SP500, it will trigger a panic sell for related companies in the same industry, and it might eventually become a macro indicator.