Mailchimp Expert

Hello, I have a Mailchimp template for my travel business that was created by a professional last year. I am taking over doing the newsletter myself and have used the template and created all my content. However, the formatting is messy and needs alignment. I also need to make sure the fonts are all aligned and it's professional. I imagine this will take 1 to 2 hours. I would also like help with this going forward too. Thank you!