It is tough for me to give generalized advice, because everyone's situation is different. Also, there are way too many people out there that exaggerate the wins. Find your comfort level of risk.
There are two solid truths, though, that will help anyone do better. The first is a plan that includes livable expenses, short term savings, and long term savings. The second is understanding what causes investments to rise and fall, so that you can be more proactive and less reactive.
The third is not changing how much you spend week-over-week just because your got some extra income or a raise. Keep your "needs" money as stable as possible, and grow that extra  with better returns. The greatest gift you give yourself by growing wealth is choice. Choice to make life decisions on your own terms. Good luck.