Today my time is badisn't a good day to compete in the 1500m Today isn't a good day to compete in the 1500m

Today my time iwas bad compete in the 1500m race Today my time was bad in the 1500m race

Today my time iwas bad compete in the 1500m Today my time was bad in the 1500m

Today I can't make my PB in compete in the 1500mthe 1500m competition. Today I can't make my PB in the 1500m competition.

Today I can't make my PB in competeouldn't beat my personal best in the 1500m. race. Today I couldn't beat my personal best in the 1500m race.

I would write out "PB" because I don't think it's a super common abbreviation (at least I didn't understand what it meant at first) Or you could say "Today I couldn't set a new personal record in the 1500m race"

Today I can't make my PB in competeouldn't PR in the 1500m. Today I couldn't PR in the 1500m.

To PR is to set a new personal record.

It makes me sad. It makes me sad.

It makes me sad. It makes me sad.

It {makes | made} me sad. It {makes | made} me sad.

I have to practicinge hard. I have to practice hard.

I have to practicinge hard. I have to practice hard.

I have to {practice | traing} hard. I have to {practice | train} hard.

Please give me power, God. Please give me power, God.

PGod, please give me power Godstrength. God, please give me strength.

Your original is grammatical, but this is a common phrase.