God starts something and finishes it

There are times when we feel like we're halfway there. We started with all the faith in the world, super excited, but then life began to weigh on our shoulders and everything became slower, heavier, and more difficult. That's when doubts begin, we fall, and we tire.
Right at this moment is where this powerful truth appears: "God has begun a new work; we will not stop until it is finished." This does not depend at all on our strength, nor on our perseverance; it only depends on God's faithfulness, since he began a new transformation in us, and we can be completely sure that he will not leave us incomplete. We are not an incomplete work or abandoned halfway; we are a work in progress in God's hands.
Let us not despair and not see the results we expect immediately. Let us not compare ourselves to others. The important thing is always to know that God has begun a new work in us and He Himself will take care of perfecting it. Our part is to trust and continue walking, remembering at every moment: "I am not yet what I want to be, but I thank God for what I am no longer."
Being confident of this, that he who began a good work in you will carry it on to completion until the day of Jesus Christ;
Philippians 1:6