The Catechism of the Catholic Church states this:
The existence of the spiritual, non-corporeal beings that Sacred Scripture usually calls "angels" is a truth of faith. (#328)
In the meantime, the whole life of the Church benefits from the mysterious and powerful help of angels. (#334)
From its beginning until death, human life is surrounded by their watchful care and intercession. Beside each believer stands an angel as protector and shepherd leading him to life. Already here on earth the Christian life shares by faith in the blessed company of angels and men united in God. (#336)
In the gospel, Jesus said that the angels of the little ones are continually in the presence of God in heaven.
Jesus stated quite clearly that each of us has a Guardian Angel, who is sent by God, who guides us in our journey in life and to protect us from evil and danger.
And the 1st reading tells us what our Guardian Angels want to do for us: our Guardian Angel will guard us and lead us to the place that God has prepared for us.
We only need listen to the voice of our Guardian Angel and be docile to our Guardian Angel's promptings by honouring him and by remembering to say a prayer to him.
So let us pray now to our Guardian Angels:
Angel of God, my Guardian dear
To whom His love, commits me here
Ever this day be at my side
To light and guard, to rule and guide.
Amen