Newbie on the stock market.
I would recommend you to diversify, find 10 stocks that you really believe in long-term, then sort out 3 of them. If you have more than $300k to invest, then find 15 and take away 5, if you have more than a million to invest then you should probably have at least 15 companies in your portfolio. And of course, diversify over different sectors.
I'm not sure if now will be the best time to start going all in since the market had a 9-year bull run already and the wages are up above 3% which can be a bit alarming. If you'd like to start buying now, you should probably start buying monthly over the next 15 months. In that way, you will average down if the market goes down. Buy companies with positive cash flow, companies who will survive a really bad year and/or something unexpected, they should have a good track record, great management, and it's nice if they give out dividends, but it's not the most important thing.
You should follow the trends in all stocks/sectors and if they break below MA200 reduce your risk, and add if they go above it. Remember if you reduce your holdings and are even totally unvested for a while, that that is also a position for you in order to buy cheaper in the future.
It's fun to have some riskier bets as well of course, like Siaf, but keep them below 15% in total of your portfolio. If a risky bet has paid off and doubled, reduce some of your exposure and keep the rest in the stock. Try not to get greedy if you're seeing a parabolic movement in a stock or in the market.
Try to set up goals, like beat the market with 10% or 15% yearly, don't be sad if your portfolio drops 30% and the market drops 40% in a year, that's when you'll be making good money going forward.
Good luck!
