Option Millionaires

[Liquid_Bull]

So I checked on GPRO's earnings and it looks like I should be in a position to make some profit. Of course I'll be busy tomorrow morning but I'll be checking on it asap. I bought 4 x MAY17 $7 CALLS(@ .30 avg) & 4 x JUNE21 $7 CALLS(@ .50 avg). The pps is $7,27 after hours. My issue is that I suck at selling my profitable options so far. I've sold way to early as well as let profits decay away trying to "let some run" lol. Are there any "rules" or indicators that you normally use to maximize your profits that you are willing to share? If it is just a gut feeling you get with experience... I can appreciate hearing that as well. Thanks in advance.