A lot of people have trouble looking for good resources for Photoshop. I don't mean textures or PNGs because you can always find them in Google easily. I'll be talking about the presets of PS like brushes, patterns and styles.
When I first started graphic designing in PS, I had lots of trouble because I had NO good brushes and other presets. I didn't know what to search up.
So to find the best resources for PS, go to Deviantart. They will probably have everything that you were looking for.
Things you can search up are(these are the ones that I only use so idk what to search for the other ones): 1. Photoshop Brushes
2. Photoshop Patterns 3. Photoshop Styles 4. PSD
Here's an example:
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So many brushes popped up. I'll be leaving links of a few brushes, patterns, and styles that I use a lot.