1. A strong will to keep trying - you've done it once, second time is easier!
2. Knowing that the Internet's got your back - there are people like you out there, who have faced and conquered similar problems; find them out, and learn from them!
3. Mix it up - since you'd originally left your field and are returning, you'd have done something else in the interim, right? Use that experience to make your return more fruitful!
1. A strong will to keep trying - you've done it once, second time is easier! 2. Knowing that the Internet's got your back - there are people like you out there, who have faced and conquered similar problems; find them out, and learn from them! 3. Mix it up - since you'd originally left your field and are returning, you'd have done something else in the interim, right? Use that experience to make your return more fruitful!