Say that someone takes up a “challenge” such as this one here: How to learn English? (30/30 Challenge) . (Long story short, it is required of them to make a post a day for 30 days.) This person makes a number of posts for several days in a row. Can I say these to them?
You seem determined to complete this challenge.
You seem determined to see this challenge through.
You seem determined to go through with this challenge.