I always start my work at 9:00am. I don't need to prepare many things to do my daily work because my job is work from home type. I always have my lunch at 12:30pm and I take a break time for a while after my lunch. I start again my work at 1:30pm and works till at 5:00pm.
In the first sentence, the predicate is "start", which is the first person singular. Who start? > I start. So "I" is the subject, which is first person singular. So in this sentence the subject and the verb match or agree.