The 10 days of Dhul Hijjah are here. The Prophet (SAW) himself said these are the greatest days of the year, greater even than the days of Ramadan.
Think about that for a moment.
These days carry more weight than almost anything else on the calendar. And they come once a year. Then they are gone.
Fast. Make dhikr. Give sadaqah. Read Quran. Stay away from what you know is wrong. You do not have to do everything perfectly. You just have to show up and be consistent.
Do not let these days pass like ordinary days. They are not ordinary.