Year + 年初
The noun 年初 (niánchū) means "the beginning of the year." It is a time expression used to refer to the early part of a calendar year. For example, 今年年初 means "at the beginning of this year."
年初的时候我给自己定了几个目标。
niánchū de shíhou wǒ gěi zìjǐ dìng le jǐ ge mùbiāo.
At the beginning of the year, I set several goals for myself.
公司年初就开始筹备这个项目了。
gōngsī niánchū jiù kāishǐ chóubèi zhège xiàngmù le.
The company began preparing for this project at the beginning of the year.
今年年初他换了一份新工作。
jīnnián niánchū tā huàn le yī fèn xīn gōngzuò.
He switched to a new job at the beginning of this year.