A/C system not blowing cold air

I have had this car for about 7 years,
I will detail every fixture I have had to do on the A/C system.

• The compressor went out about 6 years ago. I replaced it, no problem, charged the system, A/C worked fine for around two years.
• Expansion valve broke about 4 years ago, I replaced it, no problem, the A/C worked fine another couple of years.

Around two years ago the A/C started malfunctioning again, still worked but it had weird smell and I remember seeing white flakes coming out of the vents but only for a brief period of time, very little, honestly I assumed it was the expansion valve going bad again since the one I put on wasn't very high quality. So I just left it alone, since it was still working although not a 100%.
Once it finally stopped working and blowing warm all the time, I took it to a mechanic shop and they told me a hose was broken and It was leaking. I replaced it myself again, this time I only told them to vacuum my system and recharge it.

The leak is gone, the compressor kicks in, the Freon pressure looks good, blower motor works perfectly, but that's it!
It just won't blow cold, today finally I replaced the expansion valve assuming that was the original problem before the leak.
Still nothing, everything seems to work normal, like I said the compressor kicks in and the fan for the condenser as well.
I am thinking the system is clogged somewhere, because the thick hose (where the pressure gauge attaches to) is not getting cold at all.

What would cause a system to act like this?
I can't locate an accumulator/drier on my car, but that also crossed my mind.

I have been without A/C for a while now, I don't want to take it to a shop again because I don't want to get ripped off. I rather just throw parts at it and see which one fixes the problem.
In my opinion even if I end up replacing every component in the A/C system, I will still pay less than what a shop would charge.

Thanks!