1) you have added time that someone older than you does not. Time is finite and a limited resource- use that advantage by starting young.
2) biggest mistakes I made, I bought a property just for the sake of buying it. It was a fix and flip project and I bought it because I liked the neighborhood, needed a project, and made a choice with my heart and not my head. I became too attached it because I wanted it to work so badly, and thought if I just kept putting more and more money into it the numbers would somehow change and immediately get better. All of a sudden I am sitting with a 500k house in 200k neighborhood area. It was the mentality of keeping up with the joneses of trying to hang with my competitors in the area, and feeling like they are buying houses every week I have to be doing that too- wrong you do not. Move at your own pace, and be you and not someone else.
3) off that, it is not what you see on TV- like anything ever is- but on TV everything is quicker, faster, and easier and what the choice is in your lap to make you have to have the convictions and the belief to do it not sit there and pander wondering what the guy or gal on TV would do in this situation.
4) do not pay or buy programs because you feel they will help you grow at a faster, stronger, and better rate. There is no magic bullet and because you pay for something to make it better, is not going to make it better. Be willing to invest in yourself, but know the limit to it and the time and place to do it, and like everything else be smarter and think a lot about the best way to invest in yourself not just with the thing in front of you that seems and sounds amazing.