If you need advice on a second hand film camera, the best place to start is the original manual. You may get lucky and be able to obtain it with the camera. If not you can often find a copy on websites such as www.camera.manualsonline.com. Manual copies are sometimes free or for a small fee. Either way, it is a great investment.
Searching on YouTube for your particular camera model is often likely to find great videos showing you how to use your camera including interesting tips.
Also, the store where you purchase your kit is likely to have knowledgeable staff who can help set you up with your camera.
For general film photography advice there is information on the web, for example, USA Andrew Ortwein – www.guidetofilmphotography.com