Moe,
As you can tell, Mike is a lifelong guitar devotee and knows his business. What he says is diamond advice.
It may be that your ambition includes a guitar but that it is not necessarily majorly important in itself. I listened to a little of your stuff. Your writing may be more important to you than guitar playing. Your singing almost certainly is. Your guitar accompaniment sounds good. Its energetic with a strong sense of rhythm. It also sounds different, and in a good way. Its more important to be fresh and unique than greatly skilled and hugely competent.
If your guitar ambition is to serve as a writing aid and stage accompaniment, then you may feel that your guitar choice is less crucial in terms of how it plays and feels, and that style and presentation is as important. If that's true I wont tell you you're wrong, but I'm sure you realise that how comfortable you are with your guitar is still petty important.
Your playing tells me that. Your choice of another Strat tells me that. So I wont labour the point any more. You owe it to yourself to try guitars out regardless of peer opinion and public perception.
Mike's warning about retailers & switching guitars in the shop is vital. Even if you dont have an expert to take along to a store, it might be worth taking someone else along anyway, because just appearing to be young, naive & on your own could work against you. Dad maybe?
Dont get despondent about such warnings. Just be careful. Finding the right guitar for you should be exciting. Take your time and enjoy the search and trying stuff out.
One more point. When you do try a guitar out, remember to check the basics (intonation, sound, clean pots/switches, straight neck etc) and remember to do your own thing with it. Never let a salesman's skill & knowledge intimidate you or make you shy about playing what you need to play.
Any questions about this? Just ask.
Rudi