As I get to know my loves and desires, I realize I want a life in radical availability, in simplicity of life, yet without marriage. I want most of all a life unconcerned with worldliness, and yet one engaged in the full and regular life of regular Catholics. A diocesan priesthood makes the most sense in light of these and other factors.
Don't obsess over the idea that God has your entire life jotted down, word for word, act for act. Free will is involved. Discernment is largely a process of growing in self-knowledge, growing in good judgment, and using both simultaneously.
Literally everyone must discern the will of God. Discerning to the priesthood or religious life simply draws from the same general method. Grow at least somewhat in holiness, and then think carefully: What would help me grow more into holiness? Where are my holiest and most pure desires leading me?
Then, as with everything, ask God to humble you. Ask God to correct you if you are wrong, to encourage you if you are right. This is what I know as discernment.
Therefore, there are two final points. Don't be lazy, because God is not decieved. Don't be discouraged, either, because God understands.