Guys I dont know what to do, should I invest in Gold or Bitcoin. Gold is more stable I know. But the bitcoin development is crazyy, imagine if you have bought it before 20 years...

If you are afraid, why not divide the money and do it half-half. Diversification of investment is the best thing, Gold might be less attractive with profits but Bitcoin isn't perfect too especially when you buy it at the top, you will need to wait for years probably in another cycle before you can exit or break even on your investment and if the market is bullish, you can then make more profits by power virtual of holding but you never can tell what Gold might turn later.
Another thing you should know is that Bitcoin really need to make $120k before you will make 2x of your investment. Bitcoin might also be slow like Gold who knows unless you have a huge investment to make. I mean you will only make $100 on your $100 dollar investment by the time Bitcoin achieve $120k, $1k for $1k investment, $10k for $10k investment, hope you understand my points.