Bilal, how much verapamil; what form of sumatriptan (pill, inhaler, injector)? Oxygen is the best way to abort attacks. It is the #1 medically recommended abortive, but many doctors don't prescribe it. You need to push for that. An optimized system stops most attacks for most people in ~10 minutes, give or take a few. Many people believe that sumatriptan makes attacks worse and cluster periods longer.
It sucks to have CH, but you are lucky to have had it diagnosed so quickly. The average time to a diagnosis is close to five years, and people undergo a lot of misery during those years.
As a long-term preventive, you should seriously consider the vitamin D3 regimen, which is described in the ClusterBuster Files section of this board. There's quite a bit over in those files that you should become familiar with, include "busting," which is described in the numbered files, and also recognizing possible triggers, which you can read about in one of the files. You should probably also read "Bob's Big Guide" over there.
This is a good discussion of pharmaceutical strategies: https://americanheadachesociety.org/wp-content/uploads/2016/07/Peter_Goadsby_-_Treatment_of_Cluster_headache.pdf There are some promising clinical trials going on right now of things that might help.
Here's a list of possible abortive/preventive strategies from another post: Energy shots (5-Hour Energy) at first sign of attack (they don't keep most people up at night); melatonin at bedtime (start with about 10mg, maybe, and go up or down as appropriate); feet in very hot bathtub to at least slow down an attack; sip ice water through a straw aimed at the roof of your mouth, with the objective of creating "brain freeze" (or try holding something cold, such as frozen juice concentrate, against the roof of your mouth with your tongue) Stay hydrated -- lots and lots of water. You could try Benadryl (25 mg every 4 hours and 50 mg at night -- but not if you are also taking melatonin at night); there's a theory that allergies/histamines make CH attacks worse, and Benadryl will help.