Never really a wrong time to invest - if you are planning on hodling it. Make the right choice and get stuck in! You can make your first purchase from https://www.tap.global/ - we make things easy 
If you only want to buy and store, I think buying on the top exchanges and storing them in your personal wallet is also much easier and safer from unwanted things, than buying on useless and unpopular platforms, because of buying a coin or The token is not only the convenience needed by the buyer, but also the security in storing it.