After Jesus calls Peter to follow Him, Peter asks about another disciple. Jesus brings him back to his own response: 'You follow me.' Peter does not need access to another person's future in order to obey.
Comparison can make someone else's marriage, ministry, career or pace seem like evidence against our own life. We begin asking whether we are behind before asking whether we are faithful. Another woman's visible progress cannot explain the whole of God's work in either of us.
Return to the instruction you actually have. Celebrate another person's good without turning it into a deadline for yourself. If comparison reveals a real desire, bring that desire honestly to God. Then choose one act of faithfulness that fits your responsibilities, capacity and present season.