Help me to calculate chance of streak winnings in baccarat

i have read some of the thread before i posted here.
i used to play baccarat, my question is :

usually i will bet after 4 consecutive signal

example: BPBP. so i will bet on 5th as P.

i will declare as lose if the B-P-B-P is streak more than 10 times in a row <<--- how much is the probability?
i will start to bet after 4 consecutive P-B-P-B, how much is the probability of i win and lose if i always start bet after the pattern B-P-B-P?

tie is not counted. banker's advantage is also not counted, because i will bet on the last result after 4 result. if the banker are more likely to win, my betting pattern will hit before it got 10 streaks of b-p-b-p
is this the right calculation?
i think the 4 first pattern are still not counted in probability equation
so if i want to know how much probability of the pattern in 10 streaks in a row,
it should be: 0.5^6 = 0.015625 ( statistically 64 times in 1000 hands)
but how to combine the probability if i will start the bet after 4 times streaks
should i count this as 10 times in a row equation? 0.5^10 = 0.0009765625 ( 1.024 times in 1000 hands)

how to combine this calculation so i can know how much statistically i will win the game
thanks for effort