Dont worry we were pretty much in the same situation when we came here as well, just be open to socializing if you want to make friends coz here in Qatar friends will not fall in your lap, you have to move out and make them. If you like doing something and want to find others who like doing what you do like a hobby or shopping or something of the sort you can always post it on QL and many will join u.

Also as you can see there are plenty of folks here to welcome lonely you here :P