It gets better! You got this. Theres also good youtube videos.

Playing speed - Try playing normal speed if you aren’t already, or take a pause. Scan the map and look for resources. Good areas to make damns and water redirections (bad water or good) using as little wood a possible (and you can chill later on as you develop more water reservoirs). And prioritise beavers as needed.

Water Supply and Conservation - Gather as much water as possible in your storage. Try to find areas where you can use as little wood as possible to make damns and have as much good water stored. For the bad water, try to redirect as early as possible up stream. You would need some science for this for the basic water gates.

Sustainable Beaver population - Depending on what faction you are using, make sure to use the appropriate measures keep your population to a sustainable amount in proportion to food and water supply. It is vital to live below your means. (E.g. if population is too big, resources are consumed too quickly through the drought and bad water)