M2F detransition question regarding phalloplasty

So I had SRS last September after 3 years on HRT. I was really happy for 5 months but I really have come back to Earth with a hard bang and I'm currently regretting transitioning. Is there anybody here who has had SRS and then a phalloplasty who can give some advice please? I'm just wondering how similar it is in sensation to a natural penis. TY x