Pls recommend a therapist for my ex

problem/goal: me (f23) and my ex (m22) have been in a relationship for almost 5 years. the problem is, i've been trying to help him get through his gambling addiction for years. apparently, nothing works.

context: he always lie to me, kumukuha pa siya ng loans para tumaya kasi babawiin niya daw yung tinaya niya. may time pa na kumuha siya ng pera sa tuition niya. i already broke up with him because of it, but his mom has been asking me for help to handle this.

previous attempt: i tried many ways to help him, pero never pa ang therapy. i know it's not my problem anymore, but i really want to exhaust all my means to help him para wala akong regret sa relasyon namin 🥹

may kilala po ba kayong therapist for gambling addiction? or any counselling? how does this work po ba? pls let me know. thank you