No one is saying what is supposed to be done.
My sister in law was with guys until she became 25 years old, she had four or five relationships and was never happy in any single one. Neither sexually nor socially. By the age of 23 to 25 she was single and she slowly realized that she was attracted to other women, she dated a few and felt more comfortable, she felt that this is how it is supposed to be for her. She later on met a girl that she fell in love with and they got married and they are expecting a baby in a couple of months.
Her wife on the other hand ever since she was a young girl was never with guys at all, ever since she reached puberty she tried to make out with guys, she tried to date guys but it never felt anything for her, it never aroused her and she was never attracted to guys. She did it because her friends did it not because she wanted to and not because she was supposed to. Peer pressure is strong. After several attempts she realized at very young age that she is attracted to females, she is comfortable with females and is sexually aroused to other females.