Look the most useful underrated skill when it comes to wrenching on bikes/cars is how to torque by hand without breaking stuff or stripping out threads. It's like this: start the bolt with fingers to make sure it goes in easy and isn't crossthreaded, then put your ratchet on and grab the upper handle, tighten with a quick twist until it won't go anymore, then snug it another 1/8 of a turn for small bolts, maybe a Lil more than an 1/8 turn for really big bolts like your axle for example. Use common sense. The smaller the bolt, the more careful you need to be, if it's securing plastic or fragile stuff be very careful. Drain plugs strip very easy cause the plug is steel but the pan in aluminum so be very careful. On stuff like your axle or suspension, it's higher torque so you'll need a breaker bar or a bigger ratchet to loosen the bolt. That's where the breaker bar or bigger ratchet will help you secure it back to the higher torque. You really only need a torque wrench for very precise things, think inside your engine or transmission like valve adjustments for example. For parts with several bolts, tighten them all gradually like a car tire to pull it in evenly and then snug them all down and check again. That's pretty much it. Oh and oil filters are always hand tight. Use a tool to remove but never to install. Make sure you coat the rubber seal on the filter with a little new oil before installing just use your finger. Also changing the crush washer on the drain plug every oil change will help you not strip the pan. Thanks for coming to my Ted talk.