Everyone starts somewhere. For me, it was taking apart thing and putting them back together just to see how they work, from an early age. Having an analytical mind, being able to think through a system, because you know how the system is supposed to work, goes along way in the troubleshooting phase of anything.
However, not everyone has this analytical mind, but require a tractor to make their lives easier. My Brother is this way. He was more of a jock, "Mr. Cool" in high school, metro-sexual, type of person. Older brother. We both grew up on the same farm, but he never really had an interest in doing anything with the farm. He knew how to drive the tractors, but outside of that, he would rather be in the city working a desk job. Even when it came to hooking or unhooking implements, he was lost. I did it all for him, which in retrospect was a mistake, but things needed to get done, repaired, diagnosed, planned, etc. That was my job, the 'mechanic' of the family.
Later in life, he got tired of working his IT job in the city and moved out into the country. Bought a used small tractor to help him with his chores, his wife's garden, etc. He still doesn't know diddly about tractors, but he knows he can always contact me, a friend, or his dealer if something is wrong. We speak often about implements, brands, and how to use them. He is currently looking for pallet forks.
Squirrel moment: My brother first car, a small Geo Metro, I asked him one morning "When was the last time you checked the oil in your car?" He had owned the car for about 3 months at this point.
His response: "My car doesn't take oil." .... :confused2:
Apparently, he couldn't find the dip stick, the large yellow ring sticking up with 'OIL' written on it, so his car simply didn't need oil to run.... :mur:
But I digress. Mechanics are not for everyone. Make friends with a mechanic (or someone who is mechanically inclined) to help you with the easier stuff. Utilize your dealer, even if you bought it used, go speak to you local dealer about services, parts, and prices. Utilize this forum. There is a HUGE wealth of knowledge here, and most here are more than willing to give their two cents. I certainly do.
Take photos, especially if something is wrong, or you think it is wrong. If you cannot identify something, snap a photo and upload it. Seriously, the only stupid question is the one not asked.
Before long, you will be passing along advise to new tractor owners too. Because you will have "been there, done that" and know the answer.
Also, check out my YouTube channel. Its been a while, but I have a series on there just for new tractor owners who are in your boat. Its good content. See signature line for my channel.
Good luck, stay safe, and be active on here.