A combination of both methods work well,if strategically managing a portion of your overall portfolio for trading allows you to invest for growth over the longer term.
For me I'll prefer to go with investing cause knowing the amount of losses one attain while trading and the fact that trading requires a wide range of knowledge, so a good comparison to investing it's quite profitable and will lead to a long term success and growth.but one can apparently trade while investing as well but what matters it's being able to strategies in being profitable.
Same here, I'll go with investing rather than to trade. Even if you have skills in trading, it can still be stressful if you do it on a regular basis.
While investing is much more of a relax way of growing your money. As long as you have separate budget for investment aside from your savings then investing on right assets like gold or bitcoin will give you decent returns if you hold it for many years.