Yes. A common Jain prayer to start something new is the Navkar Mantra (Namokar Mantra). It is recited to seek auspicious guidance from the five supreme beings and to purify the mind before beginning a new activity.

Original text (Prakrit) and meaning:

• नमो अरिहंताणं
• नमो सिद्धाणं
• नमो आयरियाणं
• नमो उवज्झायाणं
• नमो लोए सव्वसाहूणं
• Eso pañca namokkharo savva pavappanasano
• Mangalanam cha savvesim padhamam havai mangalam

Short meaning:

• I bow to the Arihants (enlightened beings), the Siddhas (liberated souls), the Acharyas (spiritual leaders), the Upadhyayas (scriptural teachers), and all Sadhus and Sadhvis.
• These five salutations destroy sins and are among the most auspicious. Reciting them prepares the mind and heart for a new beginning.

A few notes:

• This prayer is widely accepted in both Śvētāmbara and Digambara traditions; there are minor pronunciation and spelling differences, but the essential meaning stays the same.

If you’d like, you can read more about the Navkar Mantra here and its simple explanation and meaning here .