schedule

[Itasan]

Do these work?
1-1. I had a hard time today because of the tight schedule.
1-2. I had a hard time today because I had a tight schedule.
1-3. Any better expressions?
2-1. My schedule is blank for tomorrow.
2-2. I have no appointment or engagement for tomorrow.
2-3. Any better expressions?
Thank you.

[Tdol]

1-1 I'd probably say 'my tight schedule'
2-3 I have nothing on tomorrow/nothing fixed

[Itasan]

Thank you very much, tdol.