In Ukrainian there is a proverb which says, "She didn't have a problem until she bought a piglet". "She" must be a female farm worker. But the proverb can be used to talk not only about these ladies but everyone (especially women, since "she" is used) who got involved in something and then regretted it. For example:
-How is your charity project? - Oh, don't ask! ... (the proverb) - Poor you! It must have been a bad idea! - You're right! I shouldn't have started it! Now I've got so many problems!
Is there a proverb like this in English?