Anyone here who has IBS-C since childhood? How do you all manage it?

I have had chronic constipation since my childhood. Every bowel movement I had was incomplete and occured after 3-4 days. I am finally getting help for it now after finally being financially independent.

My doctor has prescribed me with stimulant laxatives and psyllium husk for short term, till they try to figure out the actual cause of my constipation. Anyone else who has suffered from constipation since childhood? How do you all manage it? And did you find the real cause behind your constipation?