I recently started investing. I had a small amount of money that was from my previous employers 401k, so i put it in a roth IRA and only recently invested as it was simply rotting in a money market (no gains/losses).
I had been seeing nothing but headlines of the market constantly reaching new highs so what i did was i looked for a fund that replicated what the market had been doing. I originally wanted to buy s&p 500 but since i didnt have enough money for a full share i found something similar. I looked at the historical chart and saw that SPGI (s&p global index fund) was doing what the market had been doing, steadily growing over the last yr.
I bought in at 138, and its now at like 145.
I then started buying individual stocks just cause i wanted to (at&t, tesla, netflix)
My advice is to start with a small amount of money that you can lose and survive. No matter what happens you will learn and it may sting, or it may mean you make some money.
Just take a small amount of money, pick someyhing and go!
It's my belief that a lot of people act like they know what they're doing, but they don't. The market tends to go up in general so people make money and therefore think they are good at it.