It's a bit hard to give tips for Windows 10 as major releases change the way it works, but these are things I have found useful.
The first is the open shell menu (formerly called classic shell). I've used this since Windows 7, and although Windows is improving, the classic start menu lets me organise my workspace my way, as in the example below.
Second is privacy. I had an article on checking this - but Microsoft keeps changing the rules. The basic thing is to check where and how your data is used. There are quite a few settings not obvious at first glance.
Third is what version you use. Most computers come with W10 Home. Differences with Pro are mainly covered by MS, but as usual, they don't mention some features - like more control over the timing of fixes and updates. if you're not happy with the way it works, see if Pro might be worth it.
Finally, a lot of functions that used to require programs are now found on the internet. Start.me as become my home page for both Firefox (me default), Chrome and Edge. (There is an Edge issue where I haven't yet been able to get new tabs opening as a DuckDuckGo search page.) This example of my home page shows how everything I might use is at hand. You'll notice a second tab called bookmarks. Just imported mine and rearranged them to suit - far more accessible.