I have a bartholin abscess the size of a golf ball which is causing me extreme pain sitting and walking should i go to outpatients to have it treated?

Yes: Bartholin glands are normal, but when one becomes blocked and forms a large painful cyst this will usually keep coming back unless it is removed. If it becomes infected (abscess), that complicates things further because it tends to worsen and makes removal more difficult. At home, there's no curative treatment, but warm compresses may help until you can be seen. Do be seen by primary care or GYN.