I'm trying to learn about investing in the stock market. I want to get people's opinion on a few things

The thing I have learned through reading and research is that to really make money investing (atleast safely) you need to keep adding money, trust the power of compound interest and diversify.

If you focus on one investment and it fails, you lose. However nothing wrong with taking some money and trying your hand at some new kinds of investment as long as you are OK with the idea you could lose it.

Margins is a trap. It promised greater returns based on small upfront cash. The problem happens when volatility occurs and you are forced to cover your position and hence take a loss. Even when the market returns to your entry level or in your favor, you would have already suffered a loss.

The same with short selling. You lose both ways. When market is rallying and when market is not going anywhere (which happens most of the time). You lose money due to time value. In addition, short selling is also somewhat like margin as it is based on stock borrowing or based on leveraging like warrants, options or CFD. Generally not a good idea unless you are a seasoned trader.

So. I found an application that teaches you about investing in marketing. It basically just tells you all the terms and facts about thus type of investment. He tells you his opinion on the difference things but let's you make your own conclusions on everything. Basically from what I gathered these two things are not a grate idea. But I do not like forming my opinion solely based on one person's idea. That's why I asked. I found this app only yesterday night, and yes I'm not completely new to the terminology but a lot of this stuff iv never really had a full grasp on what it all ment when you put it together. But your right from what I've learned so far compound interest over a long turm is the best for the turn out for your money.