What am I thinking???

This morning I was out with my coffee. I had lost some more plants, a cucumber (putting me to 3 plants), all but 2 of my carrots, all of my beans and some green onions! I was heartbroken! Then, while checking out my herb garden, I realized I had not planted 2 of my most used herbs! Oregano and Thyme! How could I forget those? I had to fix this! I decided to get some different carrot seeds and replant them. Big mistake, going anywhere near seeds. I ended up buying new carrot, bean, garlic chives, oregano, spearmint, and thyme seeds, and a jalapeno plant! I put the jalapeno in the space where the cucumbers were, replaced the carrots and the beans, put some garlic chives in where I lost the green onion. I planted seeds in cups for the oregano, spearmint and thyme. I also decided to try and start my mix of bell peppers again. Where am I going to put all of this? In my excitement of starting a garden, I think I have over done it. Now I need to worry about over crowding! Of course, if I keep losing my plants, that wont be a problem! I just wish I knew why I was losing them. To much water? Not enough sun? Wrong soil? Transplant shock they just never got over? My herbs are doing great. Is it because I put the amender in? Is that my mistake in my gardens? Lots of questions but no real answers. Frustrating, yes! Will I give up? NEVER!