Weakness take over

Being strong just haven't been easy. It seem as though one thing go wrong ,everything go wrong. It feel as though me being strong is breaking me in two . But I fear that if I show my weakness than I would become weak. Sometimes being strong is not my option at all. But I think about how i been strong for 18 years so far, Would 18 more years truly determine how strong I am? Or have I reached my max?