I'm not being flippant when I say this.
Stop thinking and start doing.
Write down a list of the steps you need to take to get to your Airline job and then stop thinking and start doing each one in turn. If you start thinking again. Stop. Then carry on achieving each of the steps.
Ps enjoy being solo in remote places along the way as you won't get to do that once you hit two crew, it's the thing I miss the most.
Pps telephone calls and CV's sent via mail don't count as " doing".