I need help

I have a problem on facebook if anyone knows whatI should do let me know. The problem: I can't make y own posts. when I try there is not place to write on the post and it wont take the words.I can answer people om their thread but can't startmywn, I looked for phone mi,ber for Faceboo, they did everytyingto hide it. I found a number but can't find the area code. can anyone help?