Great tips, Vern (@not a perfect sax player). I just want to wish you well!
As @PigSquealer says, everyone goes through this to some extent. So it's not just 'your' problem!
I'm probably known for long, rambling posts on the café but this one (too) is with my best intentions.
Lots of things have already been mentioned that you can do to reduce or mitigate 'performance anxiety'. As far as I know, anxiety has interrelated mental and a physical effects. So 'anxious thoughts' tend to be reflected in increased muscle tension and shallow breathing: the old 'fight/flight/freeze' responses to a perceived risk or danger. So a short physical 'warm-up' (legs, arms, fingers) can help to reduce muscle tension and deepen your breathing. And can also work through to a 'calmer' mental state.
As you might expect, there are very many internet articles and video's on 'performance anxiety' (a.k.a. 'stage fright'). Violinist Amy Littlewood's '
Performance Anxiety Coaching Guidance' on the Musician's Union website is probably the best I've come across. Especially her sub-sections on 'Understanding how Anxiety Manifests' and 'Root Causes'.
Most 'popular' internet articles and video's focus on 'how to overcome' or at least mitigate performance anxiety. Amy's article invites readers to at least reflect on what some 'Root Causes' might be. Her article - I assume - is aimed at professional musicians. But I think that the article is also helpful for amateur musicians.
Just on a personal note, 3 things that have helped me (as an amateur) over the years are:
- my 2nd sax tutor's advice that 'you're unlikely to perform in public at your best performance level in practice; so if you're mentally prepared to play at about 80% of your best 'practice performance' level, you won't be disappointed and you won't be so easily thrown off course by a few mistakes'.
- the growing realisation that 'musicians are their own worst critics'; we can feel truly awful about wrong/fluffed notes, missed timing, skipped sections, etc. While our 'audience' of non-musicians barely notices. They just hear what we play, not what we intended to play.
- my own realisation (in bands) that 'hey, we're all amateurs here and we're all playing the best we can on the day'. Not perfect and with a couple of mistakes but hopefully good enough to entertain you'.
For me, these points have - over the years - taken the pressure off my 'performance anxiety'. I prepare as best I can, 'loosen up' before gigs but I have no illusion that I'm always going to give my 'best performance'. If it happens on the day, I'm delighted. If it's (generally - or just barely) 'good enough' then I'm happy too.
If you only play solo (for family and friends or in a jam session), one tip that I learned from an informal workshop on 'public speaking' was to take the time to establish your 'personal presence' and make personal contact with your audience. Looking around, making eye contact, saying a couple of things like "I'm glad that you're here. I'm nervous about playing for you and I hope you'll forgive my occasional mistakes and give me some some tips for how I can improve".
What does this kind of dialogue mean? Nr. 1, it creates a personal 'bond' between (a vulnerable) you and your audience. So it greatly reduces the 'distance' between you and your audience. It creates a 'We' feeling in which the audience become 'supporters' wishing you to play well. And are also emotionally invested in your continued improvement.
In terms of 'anxiety', it becomes a much safer, less intimating space. Audience and band members are much more likely to offer supportive, encouraging comments that just 'criticism'.
Once again, I wish you well!
Mike
PS. I once took a 3 year part-time course in 'therapy'. Mainly for my own personal therapy but I did apply what I'd learned in 'business coaching'. My old course tutor and classmates would have asked more about your café name. In the sense that pretty much all café members are far from being 'perfect' sax players. So why did choose this one? Entirely up to you but perhaps a more 'positive' café name (learning..., etc.) would better reflect your sax status.