Welcome to the forum.
Indeed crying is part of the human condition and Adult crying has psychological benefits and costs;
some link both of these to perceived helplessness, as we cry out of personal pain and loss and failure and anger and guilt and empathy and joy. And indeed, crying helps us vent, helps us communicate our feelings of submission, needs and social attachments between one another. And yes, as you prove, adult crying can have a social and personal cost. For those that excessively cry, the automatic crying can, as it has for you, leave them with an out-of-control sense, effectively extending their personal suffering, even diverting their self-attention from the real solutions for the issues that triggered that cry. And finally over time, we can tag ourselves, and others tag us, as criers, and those self-expectations and perception of the expectations of others, allow more crying, with an every lessening impact on those around us.
The crier, is left to cry alone, even as the world watches. There is good news.
The good news
is that Adult crying has been studied as revealed in this excellent book review Adult Crying, A Biopsychosocial Approach
an excerpt follows. "The ancient problem of the why and how of adult crying has occupied thinkers since Aristotle. Crying was at least as problematic for Darwin (1872), and, more recently, Montagu (1959), but these are merely a scraping of thinkers perplexed by the phenomenon. Aristotle's catharsis thesis has been pervasive and persuasive for hundreds of years. Recent study, as noted by Cornelius in the chapter 'Crying and Catharsis' in this book, suggests that crying is less of a psychological and physical cathartic experience than initially thought;
indeed, crying actually increases emotional and physical tension. Sympathetic arousal, muscle tension, etc (events that have been suggested in relation to stress reduction and associated with ulcer formation and dermatological eruptions), are not reduced by crying. The catharsis model appears to be incorrect." And note that the article mentions drug treatment when such is required.
Take a read of these links and if you allow, we can discuss more, your crying.
What say you?
Note the bold underlines above are links that when clicked, opens supporting information.