So I bought into Pen on a friends suggestion and set a sell at...

So I bought into Pen on a friends suggestion and set a sell at .185c .
Got home from work to find a pleasant surprise my order had gone through.
Now don’t get me wrong I am happy , I made a dollar.
So I am thinking I will call that a trade .
Next thing is I can see the pent up demand on the buyers and sellers .
Now my dilemma is say thank you and walk away or do I try and trade it again or even better do I buy again and stay for a while as an investor ?
And before all the clever dudes research me and say you have been doing shares for years , yes you would be right but I have never made any real coin .
I have been taking random punts for years with no success .
This time I made a profit .
Just looking for opinions / suggestions .