Hello, I grew strawberries last year in a strawberry pot on my balcony. Many berries grew, but they didn't taste good because they were too mushy and watery. I'm not sure what I did wrong....This year, I would like to have better fruit.

1) Did I water too much?

2) How often should I fertilize?

I currently have fish emulsion which is 5-1-1, morbloom which is 0-0-10, and also Magic Seaweed extract.

Thanks!