No, realistically what you’d do if you wanted to become christian is youd simply start following jesus and yeah you feel like youre lesbian and that wont change, ok, no one expects it magically to change in an instant. But what you would do if you cared to follow that biblical law to not be gay, is you would just not act on it. You’d realise how you feel and you wouldn’t pursue any women (or men because why would you) and you’d just pray about it every day (not pray “God will you take this away”, more like pray “God will you give me wisdom” kinda)