i was just wondering if its normal to have to water about ever 2 days when growing in 5 gallon pots?

see the problem with mine is like i water it on the 8th around 7pm and by the afternoon on the 10th she looks all droopy.

so i was thinking either its heat exhaustion or she needs water she is about 3 1'2 to 4 ft tall right now should i be worried about this or should i just not worry about it and just keep doing what im doing?