Answer

If you do it for one day and then skip for many days, then it is better to treat it as an occasional effort, not a steady practice.

Explanation

In Jain Dharma, regularity and sincerity are very important. A practice becomes stronger when it is done with consistency, even if it is small.

So if you are able to do it only once in 7, 10, or 15 days:

• that is still better than doing nothing,
• but it is not the same as a firm daily discipline,
• and it will not give the full strength of a regular vrat or sadhana.

If you cannot maintain it daily, then it is wiser to choose a smaller and realistic practice that you can follow steadily.

Spiritual Understanding

Jain Dharma values:

• niyama — discipline,
• samyam — self-control,
• consistency — steady inner effort.

Even a small vow kept regularly is spiritually powerful. A little practice done with sincerity is better than a bigger practice done irregularly.

Takeaway

Do not judge yourself harshly. Start with what you can truly maintain, and keep it regular. In Jain practice, steady effort is more valuable than occasional intensity.