pushin profits further

i’m new to PPC, very new…
I tried to put together a campain, it seems somewhat working, i even end up making a little money out of it, so far campain cost me a little over $60 and i’ve made a little over $400, my CTR is about a little over 10%, my convresion rate probably around 10% out of that 10% who clicked on it, not sure if this numbers is good or bad, but like i said i’m new, yet i want somehow to push it further, i’ve tried putting in new keywords, i even created new ad, nothing seems to working
i was wondering how you usually increase your profits?

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