First off, congrats even if you're kinda late of joining the forum and on cryptos but that's fine than to not have the guts to join here at all because I know there are still lots that are scared however I think you are too young to get involved in this risky world, you are only 15 but I don't know if what is the legal age on your country when it comes to risky stuffs but there must be country that have a lower age requirement on the things that are supposed to be for adults only but moving on, bitcoin is already the best crypto you can get either for short or long term of investing.

Bitcoin is also/already included when you say the words bitcointalk and bitcoinhalving. Wasn't that obvious enough?