Skincare Help!!

Does anyone have any recommendations or tips to help improve my skin? It used actually be pretty decent. But I recently I’ve been noticing a lot of changes. I have large pores, I’m breaking out a lot and have quite a few scars from it, my skin tone is really uneven, and I have super dark circles under my eyes. My skin looks so bad now and it’s really brought down my self esteem.

If it helps any, my skin is combination but I tend to get a lot more oily in the summer. I work in agriculture so I can imagine that all the dust and dirt aren’t helping. I have a really bad habit of touching my face and a lot of times there’s some sort of dirt on my hands. At the moment for skincare, I just use cetaphil to wash my face and ponds to moisturize.