Actually this would be the best time to do a sale. Valuations are high, meaning you get a lot of cash for your shares. Then when the recession happens, the buy

Actually this would be the best time to do a sale. Valuations are high, meaning you get a lot of cash for your shares. Then when the recession happens, the buyers have the stock but you still have all the cash. Yes, your stock suffers (but it will under any circumstance during a recession) - this way you have a lot of cash to invest (and acquire) undervalued assets.