Earning that amount in paid to click website is going to be an herculean task If not outrightly impossible because your earning from these sites are very minute and insignificant to be able to amount to $350 in 7months?, that is not just a realistic target to be sincere with you. If you were talking about paid to post websites like this one, I would have said that you can make upto that and even more than that within that timeframe.
The paid to click I work on pays me like $30 in in 12days,calculate that and you would see that I can make even beyond that in that same timeframe, so please do not have that high hopes working on paid to click sites unless of you can aggressively bring in referrals that will boost your earning drastically.