My twitter account got suspended since a month ago. No progress until now. Does it mean my account is banned?
More than likely. Try to open another account using another user name and a different email address. Don't spam with your new account and don't send porn.
I think the maximum daily follow limit is 500 for new accounts, otherwise suspend (for 24 hours, not 1 month, it's too much).
If someone hacked your account then it won't say 'suspended' and you won't be able to log on or find your account at all. More than likely it will say something along the lines of that the 'user cannot be found.'