Skipping Meditation After Great Exertion

Yongey Mingyur Rinpoche, in a video, describes how some beginners exert themselves too much at once and then skip sessions. That is precisely my situation. Upon meditating for much longer than usual in one sitting, I skip subsequent days. Yet, recently I found myself wishing to meditate more, but not doing so because I feared that phenomenon would happen again. **How can this limitation (exertion then skipping) be overcome?** Would for example taking longer breaks between short sessions (15 min of meditation) inhibit overexertion? What would be the ideal length of such a break?