初めhajimeからkara意気込みikigomiすぎるsugiruto途中tochuude息切れikigireするsuruzo
You have to pace yourself or you'll choke halfway through.

© Based on JMdict, KANJIDIC2, and JMnedict, property of the Electronic Dictionary Research and Development Group, used in conformance with the Group's licence. Example sentences from the Tatoeba project (CC BY 2.0). Kanji stroke order data from the KanjiVG project by Ulrich Apel (CC BY-SA 3.0). See comprehensive list of data sources for more info.

Search other dictionaries for 初めから意気込みすぎると、途中で息切れするぞ。:
Yahoo!辞書 / goo辞書 / alc.co.jp / Weblio / Wiktionary