No-one can tell you what to invest in - different personalities require different strategies for successful investment. Afaict, the idea is to learn how the market works, learn how to use technical and fundamental analysis, create a trading plan that works for you and stick to the plan like glue. If the plan isn't working, adapt it, but don't just mess with it on a whim. Investment strategies should be logical rather than emotional, which should theoretically give aspies an advantage. For each individual trade, you need to DYOR (do your own research) as another person's reason for investing in a stock might not suit your own situation.
Regarding investing in a bear market, there are several books that focus specifically on that subject. I can't recommend any as I'm still reading basic how-the-market-works type books. But I've bought one by American investor Stan Weinstein called Secrets For Profiting in Bull and Bear Markets that comes highly recommended and will be my next read.
I'm currently reading Share Trading by Australian investor Daryl Guppy, which I'm finding very helpful. Guppy has also written a book called Bear Trading, which I will read at some stage.
Good luck