I wanted to start another test but now I don't have any "unspent transaction" left over.
Only little 0.09$ Transactions but the fee is already higher.
Is there no way for me to send money now?

Sorry - you are out of money now. Get some more.

However, you should be very happy your lesson on change addresses only cost you .0049. I can tell you I suffered more than 10 times as much damage learning about change address and I consider myself lucky in view of the mistakes others have made!!! BIG time losses have occurred here. You are the big winner if your lesson only cost .0049.
But I still do have like 2$ on my Wallet

I just need an unspent transaction output but I can't find one in my history, what should I do? :x
There must be a way or not? D:
just be sure when you use the unspent output 68a8 blah blah blah as a new input.. you set 2 output. one to the destination and one back to yourself.