I did a sell put on Manulife at $19

I did a sell put 2 contracts (100 shares) on Manulife at strike price $19 Expiration April 14 

Premium received (0.42) is around $42 for 50 days 

Roi for premium = 2.2% for 50 days 

Kinda ok . As dividend comes in may of 0.33 

Most likely if I am assigned I will sell the call at $20 or $21