Haha! Not three years if I was really seriously raiding all the time. I'm a much more social player, enjoy chatting with clanmates more than raiding these days.
My TH10 base I never, ever raid anymore, it costs 1,000 gold per click and sometimes takes >100 clicks to find a base that is both worth raiding (enough resources) and also that I can take out with the troops I'm carrying. So I just sit back and collect from mines/etc and the occasional clan war.
Also, keep in mind, when I started playing, TH8 was the highest you could go. And they have refined and added stuff constantly over that time, like in this most recent update adding a DE drill at TH7. When I started playing, TH7 only got two mortars, now it has three, TH9 and TH10 have both been added with everything that comes with those, etc.
My best pointers for strategy would be:
-Always max defenses and troops (mandatory) and walls (if you're patient enough) before advancing.
-Don't worry about trophies at all. If you get the loot, don't drop more troops to grab a few trophies, that just slows down your rebuild and therefore your advancement rate. You will naturally go up in trophies as your troops get stronger and more numerous.
-Put your town hall outside walls. You're not after trophies and with TH outside, about half of all attacks will simply snipe that and move on, leaving your resources untouched.
-Learn how to use new troops while farming before you try to use them in wars. Seriously. I've seen people dump a horde of dragons that just get chewed up because they have no idea how to use them effectively.
-For best results, don't mix air and ground troops. Air troops ignore canons and mortars completely, ground troops ignore rockets completely. Throwing out a mix of the two types just means you get damaged by both, the worst possible situation. The only exception is the healer, but I never use those because they just...die (mainly due to what I just referenced). Healing spells are much better.
-My typical farming army is 56 barbarians, 56 archers, 8 wall breakers, 8 wizards and 8 or 12 giants (TH8 or TH9). I then add 3 healing spells (TH8) and a rage spell (TH9). Normally, I shoot for ghost towns where I can clean up mines/collectors outside walls with just barbs & archers. Then exit, rebuild those fast troops and repeat. Average like a 10 minute raiding cycle, pulling tons of loot.
-For war raids, dragons (8) and balloons (8/12/16) are a very potent mix. Lightning bolt down one air defense (3xlightning), on the opposite side of the base from where you will enter with dragons. Then drop in dragons in a line (spread out somewhat) and then balloons in a second line behind dragons. Try to drop as close to one of the remaining air defenses as possible for a quick kill before it can take out your troops.
-Splash defenses (mortar & wizard tower) are first priority upgrades, followed by archer towers and teslas (hit both ground and air) then air defenses and canons. For placement, try to keep mortars, wiz towers and rockets inside inner walls, group wiz with rockets to wreck balloon raids.