Not only do we want to avoid these types of people (along with not having them around ourselves), but we should also look to avoid being like them. You have to be hones here - we ALL see people like these 5 types (find article here: https://www.success.com/blog/5-toxic-personalities-successful-people-avoid )
These types of people look to cause us to doubt ourselves with anything we want to positively do for ourselves in our lives. Check this out - let me know what you think and if you have any success stories for dealing with people like these. Find me on FB at Coach To Expect Success and on Twitter: @coachtosuccess