I need some advice regarding a CRM

I am a private online tutor and recently started using a CRM for the first time (OnePageCRM). I like the simplicity, but I want to set up several email campaigns to attract new students, re-engage former students, and possibly upsell current students. So I need a mass email marketing app that does email scheduling and has automation features. OnePageCRM doesn't do that, but does have the ability to do mailchimp integration. My question is, should I continue to use OnePageCRM, subscribe to mailchimp and set up the integration, OR should I abandon OnePageCRM and try to find another marketing-centric CRM that DOES have mass mail marketing and automation features built into it? I also don't have a ton of income right now to spend on this. Thank you!