"When you feel you are performing at your best, it is a beautiful feeling," the four times race winner told reporters on Thursday. "I now just need to keep the momentum and feel that again soon."
Bahrain has been one of Bottas's stronger venues in the past.
The Finn scored his first Formula One pole position around the 5.4km layout and came within a second of snatching victory from Ferrari’s Sebastian Vettel last year.
He is aware, however, that he could face a far tougher challenge on Sunday from Briton Hamilton and a resurgent Ferrari than he did in Australia.
"We were all positively surprised on the performance we had in Melbourne but ... it is a bit of a funny circuit,” said the Finn.
"I would say here this weekend and (at the next race in) China, we’re going to get a much better picture of the real performance at this point of the year."