The data is in, and unless there are valid reasons to expect that a different SSRI may have a different result, it's time to eliminate the mechanism this class of drugs affect as a possible cause altogether, and move on to other potential causes.
This is the unfortunate piece of the SSRI puzzle: there are valid reasons to expect that a different SSRI may have a different result, although that is not guaranteed. Mechanism of action is largely unknown. Some people who can't tolerate one have life-changing results from another.
How are things going, BSM?