They make hand impact drivers that aren’t all that expensive.I dont have an impact driver or a torch, but I'd buy whatever is needed to unscrew these fooking things. I'm truly desperated, and yeah, Im short on experience but for me is harder to put everything back together and bring it to a shop, because the EGR cooler is the last thing I have to remove, and I've removed a lots of parts by now. I've drained the entire cooling system too, so if I had to bring it to a shop I would have to do the work twice