What happens when I put short at 1 for margin and leave long higher to take a long position? Are gains affected?
I answered this part of your question in
this threadAlso I didn't realize that I have to fund my position beyond the 7.5% to open and close. Is there a daily average for that? How is that charged? I feel like that's a hidden fee.
You need to be a little more clear here. Are you using cross or isolated margin?
What leverage did you set?
There is also funding rate that is charge every 8 hours, but it's dynamic
Maybe you can post some screenshots so that we can help explain to you what you want to know.