Hi Ionita, my best advice is to keep things simple until you get the hang of it. I have only posted one original here and it almost wrote itself. The lyrics came into my head one day and the chords just seemed to follow once I decided on the key. I think I only used 3 chords in the entire song. Original song - This is your time
As Richard has said don’t overthink it. I watched the Tom Pettty documentary wildflowers a while back and he said that the best songs he ever wrote just popped right out of his head in a few minutes. Write and play what’s in your head as if you try to over complicate it then you run the risk of the song not sounding natural. Good luck and look forward to hearing your song!