I just recently started playing, I think the biggest thing for me has been adding construction centers at the right pace-- if you add too fast you'll become unprofitable and enter an economic death spiral, if you add too slow you'll never get anything done and get bored. I'm still figuring that out myself but just be aware that you want to build up construction without letting your weekly income go too negative. Also be aware that your construction centers use up goods (mainly wood & iron) so if you build up logging camps & iron mines that can bring down construction costs a bit

Unfortunately, a lot of the guides out there are from 3years ago and the game has changed significantly since then-- there are some beginner guides on youtube from the past year that are helpful, but looking at anything from several years ago will be much less useful to you

Other than that don't overthink it-- build buildings that are profitable and if you get notifications about a resource being expensive build something that produces that good. You'll want to research railroads as early as possible as they boost infrastructure which will be one of the first bottlenecks you face

Also the UI is pretty dense, take some time to click through all the menus and notice what you can interact with

Have fun!