Keeping My Entire Bankroll on a Site

[yellowjack]

Hello,

I've been playing for almost 2 years while virtually never withdrawing. Now I have finally amassed enough to play 10/20 and 15/30 LHE, but I don't want to withdraw any money from the site. I feel more secure and confident having 95% of my roll on party. When I encounter a downswing, it doesn't seem as bad because I have plenty of money in the account so it is proportionally less.

What should I tell myself to withdraw some money into my bank account while still playing the same limits? I don't believe the money earned into an account is that much relative to the sum.