Early flower

I don’t think you messed up she just decided to hurry the hell up and make flowers. I’m going to assume this is an autoflower. No why start a new one? She won’t yield much but she’ll yield something. Something is better than nothing in my book. Start a new one but don’t kill this one.

The problem here was that there is not enough time for a autoflower to recover from transplanting. Next time you need to start a autoflower in the final container from the start. Just be carefull not to overwater, this is a commin mistake with small plants in a large container. When you've got the space just let it grow but do not expect more than 5 grams from this girl.

It will be max 10 g plant. If you have seed and rest, would be wise to start new. Autos hates transplantation, i still did it even in flower, but there is millions of rules i follow. Choose final pot from start.