Confidence is very meaningful thing for an artist - It helps us to not be afraid of our goals, but we have to remind ourselves that too much of the ego can lead to arrogance and vanity. Here goes my thoughts about the topic and I hope that my insights might be helpful.
If you feel that you are not good enough and you lack the willingness to make & post artworks, just because someone else is better, you don't have the right skill and there is not enough time, and there is no point in that... stop. You are good enough and you have everything you need and there is no reason why you can't do what you really want to do. Don't make excuses. You and only you have something valuable to offer to the world - your life experiences, your influences and creativity make you special and no-one else will do that in your place. And there are people that will aprecciate what you do. And only you can make their life brighter and bring something to think about, to wonder and just let them forget about the mundane everyday problems.
There also will always be someone who won't like your art. And you can't do a single thing about it. Move forward and do what you like, but take seriously the advice that you get from more skilled artists that know what they are talking about. Don't be afraid to post your art online - the sketches and work-in-progress pictures are also very important.
Fake it till you make it. - it means that even though you aren't completely confident in your brush strokes, every decision you make along the way - don't think about it too much, but just do it. We are all humble and there is no way of knowing if audience will like the piece before you publish it. Acknowledge your flaws, but don't put yourself down on that - we all make mistakes, we all are not perfect. See that a way to improve next time, to study more and develop yourself as an artist.
When you feel discouraged - remind yourself of those times that you didn't give up, your small victories in your life, that other people care what you do and that it really makes you happy. And practice a lot, the more you draw and paint, then the skill will grow and you will be more aware of every new artwork you create. Learn as much as much as you can and don't be afraid to start over when things go wrong.
Having too much confidence can be a bad thing too - no-one likes arrogant artists who put down others and think that they are absolutely the best in the world. As artists we never reach perfection and there is no point, because there always will be someone out there who will be better - and that's just normal. Learn from them and teach those who look up to you. It can be upsetting to see younger artists who are amazing at such a young age - but they just started to study art seriously earlier. There is no point for envy, because we all are different and we learn at different pace. Take your time, but keep moving forward.
A lot of artists are introverts, including myself. And it's so wonderful to stay at home and to not go outside and socialize. I would suggest to do some livestreams or watch them online, to surround yourself with other artists or creative people that inspire you, comment on art you adore, engage with others in forums, start conversations. Go outside every once in a while - experience life, do some en plein air studies - paint what you see and take a breath of fresh air.
And most important - It's so amazing to learn that you can do something you thought you couldn't. Reward yourself on those times with some chocolate, apple pie, episode (or season) of favorite tv series etc. Because you deserve it. Love yourself. Treat others with respect and don't forget that you are important. And what you do matters.
So, how about you - how do you boost your confidence and what are your thoughts about it?
Have a wonderful week!
"The greater the artist, the greater the doubt. Perfect confidence is granted to the less talented as a consolation prize."
Robert Hughes (quote mentioned by lovely and inspiring KrisCynical in comments of previous post)