I think finding targets, is actually a very tricky part, be it in reality or in DCS. Thats what JTAC and Awacs are good for and if you have to do it for yourself this is VERY difficult. The actual flying is just a rather small part in DCS (at least in A10C) A10C is more a "weapon management simulator", a "strategy game" (what to kill first) with a small "action part" (= flying).
Thats also something I had to learn. Contact JTAC to get some targets, find them with your targeting pod, then probably turn around to make a new approach, set markpoints,probably turn around again to make the final attack run to actually shoot things. Thats probably also how its in reality. I'm quite sure every A10 pilot has flow more circles in his / her lifetime to plan things then any other pilot. :P
I would expect that real pilots with better training can basically do this easily in one or maybe two approaches, but for me with limited time and training its usually flying back and forth several times (or in circles) until I can shoot something. It will get better when you become more skilled. So dont expect to spot your target and then pewpew... :D
Just dont be too hard to yourself and expect that you do everything as good as you would expect from a real pilot. Always remember that those guys spend hours and hours and hours of training and get paid for this and they have the real controls. They can touch things in the real cockpil while you have to use the mouse or find the right key on the keyboard so you are also in a "handling disadvantage" even if you have a HOTAS and the MFD Panels. You do this for fun and will most probably never get as good as a real pilot just because of the lack time you can put into this or the lack of equipment. This is also something I had to accept.