How do I stay in tune while playing oboe?
Okay now this situation has been really getting my last nerve, and I would like some advice from an experienced oboist… or someone of that sort.
So I have been playing Oboe for about a month now, and I can not get the dang thing to stay in tune.
My electronic tuner goes from sharp to flat, from flat to sharp, it is just ridiculous. If I attempt to play a phrase the tuner will just wave back and forth. It is frustrating me because eventually I really hope to develop a nice, natural vibrato. but that’s kind of impossible without being in tune.

Details:
I am teaching myself to play oboe. This is because my high school band teacher isn’t an oboist, and private lessons really aren’t optional because for one thing we don’t have enough money for that, and another reason is that there simply aren’t any teachers for that in the small town I’m living in. I currently play trumpet, but I wanted to switch instruments because trumpet just isn’t appealing to me anymore >< I'm using a Student Model Selmer Oboe, and Jones Medium-Soft reeds. Please, any advice could help.

Read here.