What do you mean by rough? If you still have pieces of wallpaper, or paste on the wall, you should deal with that first, if you had to scrape the walls and damaged some of the sheetrock, there are a number of things you can do. If it's not too bad you can buy a 'can' of texture that matches the texture in the rest of your house and try to match it, or you can 'skim' coat it and make the walls smooth. I have no experience with 'textured paint' sorry..

Some of the paper came off of the sheetrock when removing the wallpaper. I am skim coating it but am not good at it. I was just wondering if texured paint who be a suitable coating.

it probably won't look that great, but if it's in an area that's not that noticeable you might get a way with it. I learned the hard way, that you gotta fix what's underneath.

Early,

It is not very expensive to hire a pro to skim-coat. IMHO, it is more efficient than paying 'an arm and a leg' for a faux finish.

I did it in my old house. It was a very small bathroom with tile up to about chest height and sheetrock above that. I used a Behr product from Home Depot in about a 2 gallon plastic bucket, but I forget what it was called. The bucket or maybe it was a separate faux finish pamphlet had great detailed instructions on it. Get one of those loopy rollers and work in 2x2 foot sections, then stop and drag a spatula over it in random patterns like knock down. Then do another section. I got better as I went along, so I would recommend starting behind a door or something, though none of it really looked bad. My appraiser actually complimented me on the job I had done. I would skim coat anywhere that the sheetrock is exposed, and repair anything else that is really bad, but I think you would be pleased with how well it covers minor imperfections, including your less than perfect skim coat. I was covering an old textured wall of some sort that was flaking. I'm still not sure what it was, but the texture paint covered it nicely and still looked good two years later when I sold. If I make it in Home Depot this weekend I will see if I can get the name of the product and the kind of texture that I used. I did my small bathroom on a Saturday and it was a pretty cheap fix.
Good luck with your project!
Beth

I had to remove wallpaper in my bathroom and ran into the same problem, here's what I did, its probably not the professional way but it looks pretty good. Got a bag of slow setting joint compound, well at first I didn't know the difference and got some that set up almost as fast as I mixed it lol. I mixed it to the consistency of peanut butter and using a 6" blade I covered the places where the wall was messed up. Then when it dried, I mixed up another batch but made it thinner, a bit thicker than paint. I used a roller and rolled it on the walls, about 3x3 feet at a time, then I used a 14" wallboard trowel thing and smoothed it out, then moved to the next section etc. When it was done, I wet sanded imperfections, using a sponge and a bucket of water. It looks good, its just about perfectly smooth now. It wasn't hard just messy.

You're about 2 weeks behind where we are with the confounded wallpaper damage. We had major damage in 2 bathrooms. We hired a professional to work on it. After a couple of coats of stuff, you can still see imperfections. Not sure if I just hired a non-perfectionist crew or if that is the nature of this kind of job. I'm thinking about doing a faux finish myself sometime later.