I have some profits in my investments, should i cash them out or continue to let it re-invest?

Continue reinvesting if you don't need it

You can cash out part of it but reinvest the rest, think long

Do both - Lock it partial profits and treat yourself AND continue to invest.

I think if you don't need the money, you should re-invest since it can potentially give you an even higher return. You can take some portion of it to treat yourself but you need to remember that inflation is still here and it's best to stay invested.