Nodal marginal zone lymphoma

Hi everyone,
after nearly 4 months of tests I have been diagnosed with nodal marginal zone lymphoma.I have a mass in my abdomen.
I am going for a bone marrow test on Tuesday( which I’m not looking forward to).
From what I can gather it doesn’t seem to be very common so finding information out is proving challenging so I thought I would join this group for a bit of support.
They haven’t said 100% yet that it wil be a case of watch and wait but being that I’m only 35 and am having no symptoms I’m assuming they probably will which of course is hard to get your head round when you think of having cancer.
Any information would be greatly received