ZDG

Hey everyone, I am new to the forum (I don't know if this is the right section to post this, sorry if it isn't) and I'm trying to write songs, but the problem here is I have no clue how to do it.

I have various topics I'd like to talk about and when I try to write them down I just don't make an order, I can make some sentences very long and then some very short, they don't really rhyme and when I try to come up with a beat for the song I just can't avoid singing my lyrics in the rhythm of other songs I like.

I'd like to have advice on how to actually write songs and come up with my own rhythm to sing them instead of just using rhythms of other songs. Thank you.