Welcome to the site, and fortunately, the Heaven part is easy! Jesus already did everything
. Just accept His death on the cross as the payment for your sins. Read John chapter 3, here's a link:
https://www.biblegateway.com/passage/?search=John+3:1-21&version=KJV ,
Now, for Him to be happy to see you when it's time for Heaven, there are many other things you can do, such as telling others about Him, trying to get to know Him by reading your Bible and praying, etc. Will try to PM you in a little bit, but I want to post before anyone tries to be a troll
.