So I would like to know if it is possible to do an enema at home to feel liberated?

Hello, I have been suffering from constipation for several years. I manage to have a bowel movement, but it takes a long time and I always have the impression that I have not evacuated everything. I have used fiber and glycerin suppositories, but it doesn't seem to be enough (note that I have intestinal cramps quickly when I use a laxative product (even if it is indicated that it is slow and painless)) Note that I take Sertaline 75mg I would like to know if it is possible to make a home-made enema? Or is there an efficient way to feel relief (in a clinic or at home) Thank you