Buns of Stihl

Well ok;
as having been a bit of a fellar one time, cutting 10 to 13 cords every fall, AND, having been involved in the business of sharpening chains and dressing bars, for over 25years...... here it comes.
As you are felling, it is almost inevitable that your bar will wear one side of the track at a faster rate, because you tend to cut EITHER left-handed or right-handed. When this happens,and it will, the bar tends to skew the cut-line in one direction or the other. and when this happens, your saw tends to jam up in the kerf. So there you are, stuck.
If the top-side track is straight, which it tends to get that way, running at no load, then you just get the saw free and flip the bar, and then yur good for a few more hours.
But, when you go home and sharpen all your chains, I find it prudent to dress the tracks on my bars as well.
Eventually, the tracks will become too short and the chain will no longer run on them, but rather rub in the bottom of the groove, which spells retirement time.
A good working automatic chain-oiler will slow wear to a minimum........ if you keep the bar out of the dirt and water, which includes wet-wood..
You gotta check the auto-oiler every time you gas up, and every time you adjust or flip the bar. Just point the bar down and rev it up. As the chain runs over the tip, it will throw oil on the ground and there is your proof.
After the cutters are sharpened, the height of the rakers needs to be addressed. Beginners need to run tall rakers for personal protection. The saw cuts less deep and more slowly. As you gain experience, and physical strength, you can shorten the rakers and saw like a pro.
Practice hitting the chain-brake often, so that it will become instinctive. I use it EVERY time I set the saw down, and whenever a situation comes up, that it seems prudent to not have a slaughter-weapon running. I can't tell you how often I have stepped on the running saw but with the chain-brake on; it happens! In many many years of sawing, I never yet wore a brake out, lol!
I always keep metal wedges, an axe, a bush-saw, and a 2.5pound sledge in the truck, cuz leaving the saw in the bush is NOT an option for me. I could be miles from home.