Painter's tape has lifted huge chunks of paint off wall

[Firefretted]

I want to cry - I didn't realise that you have to remove painter's tape while the paint's still damp and have just ruined a section of my wall. It's flaking horribly where the paint's come up so I can't just touch it up with a brush. I could weep - I hate painting and taking the tape off today was supposed to be the end of weeks of doing this bloody room! Are there any fixes or am I just going to have to resign myself to prepping/sanding/dampsealing/repainting that section of wall and re-glosssing the adjoining woodwork from scratch?

Yup.....sorry !!

To be honest, I find the bastard stuff lifts the paint off even when you take it off while its still wet!

I have never once managed to use it without causing damage

Masking tape. It lulls you in promising protection, then it sabotages all your work. It's a mean, sticky little bastard. I am sorry but don't think this is your fault. I have been there. I just don't use it now at all.

If the paint has come off, then that's it, I'm afraid, but I'm a bit concerned that so much seems to have come off, clearly not just paint. That suggests to me that the stuff that's come off has problems of its own. Was it dry before you put tape on it? I mean, really dry, dry as a bone for days before?
Tape might tear off loose paper or a bit of paint on the edge, but it ought not to take great chunks off. Could we have a photo?
If you need filler, this is great- dries quick and easier to use than the usual stuff, though expensive. www.decoratingwarehouse.co.uk/mangers-ready-mixed-all-purpose-filler
I seldom use masking tape. When doing gloss like existing doorframes, I will usually paint the wall first, then do the woodwork by hand, carefully. If necessary I will then touch up the edge with the wall paint afterwards once the woodwork paint (I use spirit based) is dry, because then you can wipe any emulsion off the woodwork paint really easily if you need to 'have another go' to get it straight. If you're struggling with this, a 'fitch' is good for doing edges, they have a sort of slanted end, makes it a lot easier. You run them down the edge with the hair ends on the surface, and the handle slanting away from the surface. This is what they look like