Welcome @Grensgeluiden you seem like an interesting individual

I make a living as a webeditor / copywriter.

That sounds like a pretty cool job, I'm sort of interested in copywriting.. If you could give me any advice about that what would it be?

Well, maybe I won't be writing that much at all. Maybe this blog will be the first in a row, maybe it's the only one I'll ever write over here.

Guess I'm taking a risk by spending time responding if this might be the only post you ever do, but oh well! Maybe it'll be worth my while and you'll stick around and we will interact more in the future. :)

... you just might grab my attention! And maybe, just maybe.. I will grab yours.

Those are some good topics you're interested in and I share some of those as well, and yeah! Who knows.. Maybe we'll grab each others attention.

If I could give you some advice I would say to try to find some communities to be a part of as they can make a big difference here on steem and be very rewarding and valuable to be a part of. A good one is Hive account@steemitbloggers and also I help host a contest/community called the Hive account@ifc or Information Finding Championship it's a neat group and we try to do a different quest each week when the game is in season, there's quite a few supportive people who will likely leave feedback on your entries and you may even make some friends!

In addition to that I would suggest to try to socialize and go to other peoples pages and leave comments and check the #introduceyourself tag to connect with other new steemians.
And also just put out good content that people like and build up your following overtime.

If you have any questions about anything feel free to ask and I'll do my best to try to help! If I can't help I can probably find someone who can. Cheers and good luck on here. :)