I actually know about bitcoin when it was just 300 usd.. I regretted badly and now the price had already jumped to over 6000 usd.
If you want to really make money on investments, then investing in Bitcoin does not make sense, since in case of success your profit will be small.. At the moment, you can pay attention to the IEO and pick up the project. I have one in mind, can read
https://bitcointalk.org/index.php?topic=5136520