Oh I'm very aware of it. I tried once before to quit my job and go it alone, at the ripe old age of 22! I failed spectacularly. Reason - I only had 7k GBP in my bank. That simply wasn't enough money for me to live on and pay my mortgage till I found clients. I then put aside 10x times that amount, and things started to fall into place. Exactly the same skills, idea and enthusiasm as before, just a bigger cushion that meant money was not at the forefront of my mind driving crazy waves of anxiety.