Hi Toni---
Ive already replied to your message on the trumpet forum. Like ive said, trumpet is more rewarding yet flute is easier. in the end, it is really all up to you, but heres some advice. Trumpet is harder to learn and gets easier as you go, but Flute is easier to learn and gets harder as you go. email me for more answers to whatever questions you have. I play 20+ instruments, so im pretty sure ill have an answer. my email is morrisonc10@yahoo.com.
And concerning your inquiries about flute, it is nevertheless a very fun instrument to play. It has an uncanny sound that kind of entrances you and it lets you personalize your sound, whether it be sweet and gentle, or loud and robust. it has a noticeable fingering pattern, so once you have one scale down, you can figure out the rest. Like i said before, email me.

Before you sell your trumpet, make sure flute is what you really want to commit to. Just something to think about but: If you think you aren't getting a good sound from your trumpet, what happens if you spend loads of money on a flute and can't get any sound at all?(don't laugh it really happens) Will you really be willing to practice at flute when you can't get a sound when you gave up on the trumpet because you couldn't get a sound you liked.
Have a good think about it and talk to a few people before selling or buying anything. Mabey you could rent a flute for a while or borrow one from someone to see if you really want to buy it.

Hope this helps
Leprachaun

Very true. You need to blow at the exact angle on the flute lip plate (on the edge) to create vibration inside the flute, and therefore sound. It doesn't have an air guiding moutpiece, but a recorder does.

The renting/borrowing solution is good, try before you buy just to be sure.

As I said in your post "Should I stop playing the trumpet?", eventually we choose an instrument based on liking the sound it makes which inspires us I think.
Also important is that the instrument is suitable for the style/genre of music we wish to play, ie classical, jazz, pop.

Keep in mind too that flutes tend to be more expensive than trumpets presumably because of the intricate mechanism.

In order to choose an instrument, I try to figure out how it would sound playing the melody that I wanted, to see if I would like it or not.

Nice! Let us know how it compares to the tumpet once you get to play a bit.

I mean trumpet not tumpet, could I edit the post?...