Affiliate Marketing Secrets

In my country there is no option to withdraw money from Paypal. I can spend money only. How can I withdraw money from Paypal ? Is there any way?

I am a beginner investor, but I am quite successful. I make around 5%-10% daily profit from my whole bank and rarely have a negative day. My secret probably relies on my bank management: I have extensive excel calculations that I gathered in 4 years of market study and even invented a profitable system myself.
My problem, though, relies on the withdraw of the profits. If I withdraw them, I will lose bank capacity to make more money in the long term. But if I never withdraw any, I will never really profit from my efforts.
When should I withdraw?
1) In a time basis (monthly for example)?
2) In a profit basis (Reaching for example 200% of the initial bank)?
How much should I withdraw?
3) A specific amount?
4) A percentage over the total bank?
5) A percentage over the initial bank?
6) Also, is there any formula for my answer, theoretically accepted by professional investors?
Thank you very much for your answers.

Hi everyone .. Like every body knows . If a person in Saudi Arabia opens an account with paypal. He only can parchase items with the balance but I earn some money online as an affiliate .. so, How can I withdraw My funds to Saudi Arabia ??
Need help .. plz