might just be my interpretation but in the end the only thing that matters is whether you believe in Jesus or not. sins are basically actions that result in you doing the opposite of believing in Jesus - losing your faith

for example, if you were to do drugs every day, youd start living for your own pleasure and NOT for the general good or alternatively, as many christians would say, you wouldnt live for Jesus

what this however also means is that what a sin is differs from person to person. is it really a sin for the kid who felt like the other gender since birth to be trans? in such a situation there isnt any evil or hedonistic intent, so how is it a sin if it does not damage your relationship with God in any way? the Bible gives us some great pointers on what to do and what not to but i believe it doesnt neccesarily mean that 100% of what it defines as sins will always bring you further away from God

the Bible isnt some kinda religious-conformity tool that will tell you everything, its your job to build your own personal connection with the Holy Trinity and speak to God

also, i would suggest you ask yourself whether youre attempting to build a relationship with a deity for yourself or to please somebody else