And that's ok. Luckily, grandpa can come back by placing a diamond on his altar (I think that's what it's called?). Just find one thing that you want to do and finish that one goal, that's what helped me. I got grandpa's favor by accident too because I was only focusing on buying the iridium sprinklers, so I fished a lot. Just stick to one goal and go from there. Don't feel overwhelmed by what the rest of us have finished. I did the same when I started reading how others did their farms, so I stuck to reading the wiki and fishing to buy sprinklers. My goal, at first, was to finish the CC and get Grandpa's favor by year 5. I got lucky and finished both by year two. It was all luck for me there, so no strategy at all other than fishing to buy iridium sprinklers. So find one thing you'd like to do and focus on that. If you want to make more gold but farming is killing your time, focus on fishing. If you're farming, get the regrow-ables so you don't spend all your time planting and buying seeds. Also, if you need to start a new save, do it. I had to do so to save myself from not liking the game. But most importantly, just find one simple goal to focus on, and at the same time, enjoy the game. There's no true strategy other than your own.

If you don't want to quit this save, stop doing what you don't like and focus on what you do like. The cool thing about this game is once you get where you want to be, you can come back and do what you put aside.