Hi there and
to the forums!
Phil has given you great advice, Sprite is indeed a little boy
However, since you've only had him for a few days, you might need to step back a little and give him space to settle in. Usually, it's recommended that you do not try to touch or tame your budgie for the first two weeks to give him time to settle in. During this time, you should spend lots of time with him by his cage, reading, talking, singing to him, etc. to ensure he's getting used to your voice and presence.
After this time, you can start again with the step-up training
Right now, try to offer veggies every day, but don't worry about converting diets until he's more settled in.
Meanwhile, you've come to the best place to learn even more about the best of budgie care practices! Be sure to read through the forums' many budgie articles and "stickies" (threads "stuck" to the top of each subforum for easy reference) to ensure you're up to date on everything! If you have any questions after reading through everything, be sure to ask as we'd love to help.
We hope to see more of Sprite soon! He's adorable