If it is VMware you want to learn, check out the free Hands on Labs (hol.vmware.com). I was told by someone at a VMUG (VMware User Group) that you can put infrastructure you have created in a lab environment on a resume and that if you can do it in the lab environment you can do it in production. There are also some VMware product walk throughs out there that I think are helpful - https://featurewalkthrough.vmware.com/.
Look for a local VMware User Group to you. Go and talk to the people in that group, and ask them how they got to where they are today. There are also Veeam User Groups around the country too. Again, this is a great place to get product specific knowledge and advice from those who use the technology daily.