Hey @Pan, from my view point (I am female, in a same sex relationship) is that no there is never an expiration on identifying as Questioning. For example, two of my closest friends are in heterosexual relationships but continue to identify as questioning because they're attracted to all genders consistently. It's really however you feel and whatever you are comfortable with 
Also, I don't think you're ever expected to choose one particular label, sometimes society can be a little ignorant and judgey, but just ignore 'em - they're definitely becoming the minority!
You sound really open minded about the whole experience which is so rad! What's your major concern about being in the state of "in between"? That sounds like it's an important issue for you?
I am happy to share my own experiences but there are also some great resources out there for exploring sexuality.
https://qlife.org.au/
https://minus18.org.au/
http://au.reachout.com/sex-sexuality-and-gender-explained
Look forward to hearing from you!
To answer your question, yes. There is no limit to how long you can be questioning your identity because it's your identity and something that only you can know. Being shy isn't a bad excuse, what are some small steps you could take to build up to a relationship? Do you attend any social groups where you might be able to meet someone?
I'd be happy to share my experiences with you
Although in my case it's more of a 'lack of' because I don't quite understand sexual attraction. I am most definitely asexual, something I first learned about from a friend and then through googling, I learned the meaning and decided that fit me because I don't feet sexually attracted to anyone.Personally, I think sexuality is a fluid thing that can change. There's no set age where you have to be sure of your sexuality, you can be unsure for however long you like. It's how you feel that matters, not what you call yourself.
Did you check out any of the links other members have provided? Have they helped at all?
Fancy seeing you here @Pan 
I'm firstly gonna recommend this YouTube playlist, that contains a wonderfully helpful series called the ABC's of LGBT by Ashley Mardell (who you might have heard of?) Anyways, there are some videos there on different sexualities, maybe you'll find something that resonates with you (or at least learn about a bunch of cool identities!).
Sexuality can be super fluid, but it can also just stay the same. I think it's totally okay to stay questioning for as long as you need/want to, and you don't actually have to identify as anything if you don't want to. I know that some people simply use 'queer' as an identifier, because it sort of covers everything but doesn't really put you into a box in the same way that straight or bi or ace would.
It's super tricky to work out what the hell is happening sometimes, and that's totally fine. It took me a while to settle on how I felt that I identified and how I wanted to identify (super gay ). It's a process.
There's a thread on LGBT+ stuff here that you might also want to check out 
It's totally okay! I totally understand you wanting to know what your sexuality is, so that you can share it. It can be nerve-racking sharing with other people that you've got a different sexuality to the "norm", and that's okay. Anyone who doesn't accept you isn't worth the time.
For me, finding out my sexuality was more about my lack of knowledge, I didn't know what sexual attraction felt like, which lead me to the conclusion I am asexual.
I don't know if there are any names for fluid sexualities, but maybe you can make one.
Your sexuality will always be your choice.
Hi @Pan!
Questioning or figuring out your sexuality is completely normal! We are all continuously building our identities and who we perceive ourselves to be. There's no pressure and there's as much time as you need to figure out everything. I think there's a pressure to label ourselves when in reality, it's important to do what feels right for you
