For new painters it can be very hard to have a painting that you have been working on for weeks and months to be destroyed by one silly mistake.some of the artists may leave the canvas alone and decide to start the painting afresh others may be inspired to move on amidst the mistake and there those who can turn the mistake into something artistic.
If you happen to be using watercolors and end up destroying your canvas you can rectify the mistake by using water spray.The idea of using the water spray may sound insane, but it works you can do it and protect the rest of the painting using masking tape.
When painting is overdone in an area the only thing you can do to correct the mistake is using the pestle this helps to cover the area that was covered too much into a light space.
Having an art block is normal for every one the difference is how you are going to overcome the block and how you are going to be inspired to be able to start painting again.
The first thing to factor in is to ensure you take the block positively yes I mean you have to be happy about it, you may have painted canvases upon canvases for weeks, and you were doing great but all at once you end up hitting a brick wall this means that you did not become empty what it means is that it is time to start exploring new ideas and styles of painting this can be the break that you were waiting for.
If you are a professional artist the good thing to do first is to go to the local art community center by doing this you will have the ability to see what others are doing and come up with ideas
The other thing you can do is call your friends to go to an event like hiking and come up with sketches that inspire you during the journey or even try sketching your surrounding this will help you get rid of the art block.
Having a critique for your work is very important a critic helps you overcome your challenges and helps you become better ,you can invite a fellow artist to come and see your work in order for him to critique and help you overcome your block.
Going to exhibitions is another way of overcoming the art block this is because you are able to see what people are painting and you can get new ideas from the art also by talking to the artist in the exhibitions may help you get inspired to paint new things.
Being in the painting studio alone for hours may cause boredom most of the time boredom may result to art block the only way to overcome the art block is to go out and do something that you like apart from painting and upon return the art block may vanish.