how long does it take to make and agreement with brand owners?
is it hard?

I support Ethereum because programming language support loops and other “Turing-Complete” features alleviating a lot of these frictions. Consequently, Ethereum has the potential to, and actually does, attract more developers to build applications on top of the Ethereum blockchain.
Now, the lack of Turing Completeness is a problem, but the Bitcoin’s scripting language has some other structural oddities that make it hard to build certain types of systems. (again, Not impossible, but hard)

I always withdraw in Kraken and never had any problems

When stress makes you feel bad, do something that makes you feel good. Doing things you enjoy is a natural way to fight off stress.
You don't have to do a lot to find pleasure. Even if you're ill or down, you can find pleasure in simple things such as going for a drive, chatting with a friend or reading a good book.