I just finished a work for a client and he already paid the $60 and approved the milestone, but my balance still show $0. Could it be that my Paypal is not yet active that's why it's still not showing? There's also no record of earnings on my list yet. I dont know what to do anymore.
I just checked your account and I can see that your payment is in Pending status. The funds being in Pending means that the earnings are in the standard security period before they will become available.
Payments for fixed-price milestones (and bonuses) have a 5-day security period from the time payment is made to funds availability. Please read this help article for more information.