And also, don’t take things so personally.
No mapper can create perfect maps that everyone likes.
As nullskillz points out, there are things to learn while mapping, and not all of them are just about using the tools.
It’s at LEAST common courtesy to ask permission to use stuff someone else created, and there are very good and practical reasons why you should never copy textures, models or any other asset from a map directly - whether you are inclined to ask permission or not. These are two seperate issues really.
The permission thing is mostly common courtesy within the mapping community - why would anyone think a resource was good enough to use in their own map, yet not good enough to get / seek permission or at least credit?
Fair enough if you didn’t know, but now you do so you can ask - I can’t think of anyone on here who’s sought permission and been refused for stuff like that.
Not to mention, mappers like to see where their assets end up.
Let’s face it, you’d be pretty pissed if someone used bits of your map and claimed (whether explicitly or not) that it was their work.
Now, as far as I’m aware, people seem to like your map. For a first effort, this is encouraging. So don’t give up, just develop a thicker skin and remember that there’s still plenty to learn. You aren’t the first person to unknowning do something bad with your map (eg including campaign files in their maps, or in another mapper’s case, copying seemingly half the RTCW maps verbatim over - now THAT really pissed off a lot of people!).
Don’t take stuff personally or over-react. Ignore non-constructive criticism. Accept constructive criticism for what it is - not someone trying to piss you off, but someone pointing out where you’ve done something wrong and how to improve it. You’ll notice even ‘friendly’ I explained not only how you’d done wrong, but what you need to do to fix it. Once you’ve done that, no problem, and we can all get back to arsing around in new maps.