For understanding crop sensors I like this diagram. Seeing it this simplified makes it very clear what the difference is. The amount of light coming in is always the same. The only difference is the size of the sensor that sits at the focal plane is smaller

https://i.imgur.com/L14EOM9.jpg

Try editing your photos ASAP. Don’t feel like you have to do anything with the photos you’re “meh” about. Move onto the next shoot. At this stage, quantity will bring quality in the future. Every time I take my camera out to shoot I have a rough number of how many “good” photos I’d be happy to get out of the shoot. In the beginning, to make it easier on myself I would say that number is 1. As time has passed it’s slowly increased. Good luck!