That set doesn’t say what grit the stone is so it’s hard to say for sure but it probably isn’t a great stone.

It can be tough to invest in sharpening supplies if you aren’t sure about the hobby as a whole.

A strop is a good investment, but unfortunately once your knives are dull they are dull and a strop likely won’t do the trick.

That stone may be fine, sharpening is largely about technique and practice. But if you want to make a small investment I started with a set like these (https://www.amazon.com/DMT-D3EFC-Dia-Sharp-Extra-Fine-Diamond/dp/B00006IIO3/ref=mp_s_a_1_12?dchild=1&keywords=dmt+diamond+sharpening+stone&qid=1629862405&sprefix=dmt&sr=8-12) For around 20 dollars they are a good way to keep your knives sharp without committing to a big stone.