If you want to explore this topic here are some useful links. Remember, don't just dive into practice, because alot of this information is written by people who are experimenting. Alot of them are teenagers and don't have the experience needed to know if they are really doing something safe or not. You need to educate yourself first, and then you need to know that it can take a long time before you get satisfactory results. You can also stress yourself if you push too hard, and that can mess with your moods and state of mind. So be careful with this, and for now just restrict yourself to the theory, even you end up reading a lot about "practices".
This is just a sampler of links I googled using the words psionics and psionic training. You can look at key words in the articles and google your own to expand your knowledge base. Again, I can't emphasize enough that you need to get a good background in the theory, and then just go slow in the beginners practices. You have all the time in the world, so don't rush. Use google for any topic that interests you. Not all the information is accurate, and there is a lot of fluff and general popular stuff that might not be the best for you to try, so just keep collecting info and thinking about it until you get a better idea of this.