My opinion is this won't be a long-lasting dip due to the fact the financials are actually so mind-blowingly good and there is really nothing that points to that changing, even in a recession. In other words, this downturn is fundamentally different than what happened to TSLA investor sentiment during the years before profitability.
The wildcard is the overall valuation of stocks. They do undergo a re-pricing from time to time after a long period of bullishness. But there is no way to tell if this re-pricing has more 'stickiness' than a typical correction based on worries about the economy, interest rates, valuations, etc. What that means is the proper course for a Tesla long is to ride out any market variations. They are normal and are impossible to time with any accuracy. This could turn around on a moment's notice or it could drag on and get worse over the next 6 months to 2 years. In my opinion 2 years is a very, very low probability event because market re-pricings have accelerated timelines these days. And Tesla is a unique case in that they are fundamentally much stronger than almost any company in history. That said, this possibility, no matter how small, is the reason I recommend investors do not deploy money they will need within the next two years. This prevents having to withdraw money from the market when valuations are in the gutter.
Given specifics surrounding Tesla, the strength of their growth, the lack of competition, the relative value of shares right now, etc, investors with a higher risk tolerance could perhaps reduce that to one year. Tesla could 'outgrow' a crappy market that had longevity simply through rapid growth of revenues and earnings. I would be more fearful of missing outstanding appreciation than fear of going through a two-year period that was flat or down.
These things can't be predicted. Relax, live life, have fun, be productive.