Give me, oh Lord, firmness and watchfulness at the wheel, to get to my destination safely. Protect those traveling with me. Help me respect everyone and drive prudently. May I notice your presence in nature and in everything around me. Amen.
the use of "Let's" implies that at least two people are doing something.
When we say that in a singular form, I mean when it's just me, we should use the form "May"
and gapita,
In a prayer, it's usually placed that "Oh" before Lord.
For that "Protect those who travel with me" would be correct too, however in English is a lot more common using the ellipse: "traveling" instead of the form "who travel"
Em "protegei os que viajam comigo" penso que seria mais correto "Protect those that travel with me.."
e "E que eu descubra vossa presença na natureza..." e aqui melhor "May I feel your presence in the nature and in..."