text:  I don't know where to start with investing and doing it with mental peace because a few years ago I made some money on Tesla and that was, although it worked out great, I look at it now and it was just a super stressful time and it almost kind of affected my own relationship, which is, she's amazing, now we're getting married. But my question is, where do I start with investing and how do I know how much to put towards paying down my mortgage versus investing versus retirement?