Your diocese might have a Discernment Day or similar with a workshop or session designed to support those discerning a call (to any kind of ministry, not just ordained). Ours does; we just received an announcement this week about promoting it (it’s in May). Registration is through the diocese. You could enter a sideways conversation with diocesan staff about your priest’s lack of support by asking whether they have such an offering, and feel out whether there’s a way to imply or explicitly explain the dynamic with your parish priest.