As per the current immigration law, you can not transfer your sponsorship to another company once your iqama/Residence Permit visa is stamped on your passport for 1 year and even if you finished your contract, you still need a no objection from your current sponsor to work at another company. And to work in any company..you must be under their sponsorship otherwise you'll get penalty and a possible deportation if being caught by authority.

Another thing, your conditions based on your story is very common, most of the contracting companies are paying delayed salary too.
If you ask my advice? I would tell you to BE PATIENT! You are still new in Qatar, later you'll get adjusted to your new environments and work conditions. If you planning to go home and resign...stay for at least 6mos-1yr to recover your expenses of coming here, also observe the situations in your company, if the conditions are getting worst instead of improvement then you may leave and Bye-Bye Qatar! .

People back home think that working abroad is just counting money. They dont know that we worked hard for it risking our life for the sake of our families and loveones. To ease your boredom & homesickness, go out!..relax! and socialize yourself, make friends to divert your mind. Welcome to Qatar!! :))))

Kabayan,
Apple