The way you practice regularly in writing then you will have good hand writing .before few years my handwriting was also so bad people can't able to read properly and my school teacher call my parents that your child is not writing properly and we can't able to read what he has written.From that I started writing for 3 hours continuously slowly and after 3 months my handwriting comes brilliant and now you can also understand and appreciate my handwriting.
So,you have to work hard to improve your handwriting then only you get success and you can also feel good on reading your blog at which you had written with your hand.