I dunno why I never come in this thread. But if y'all need need to know anything and I can help, hit me up.
I've been at Cisco in Advanced Services for about 3 years. I'm on the Data Center Optimization team, I started out with UCS/Nexus/MDS now I pretty much exclusively work with ACI and trying to pick up SD-WAN. But this is probably my last year doing this. Either I make a move to sales and make some REAL money, or I attempt to make the Dev Ops switch. To get into Dev Ops I'd even go back to the customer side, because thats where the future of IT is. All other shyt is irrelevant honestly....
But if anybody is just starting out I'd say learn/study the basics, A+ > CCNA > VCP. That will probably give you a good enough foundation to land a decent job and get out of Helpdesk as fast as possible. Plus its really easy to lab a bunch of that stuff if you have a decent computer. A+ is a book exam, no need to lab anything there. VIRL or Packet Tracer is good for labbing route/switch, GNS is garbage. For VMWare you can build a nested lab in VM Workstation which is free.
Then you can branch off and start moving into something more specific. IMO there is only two routes to go if you want to make money and future proof yourself....obviously security and the other is cloud/devops. If you want to go security then you probably don't need a lot of the stuff I said, I dunno....thats not really my thing.
If you want to make the dev ops switch start with RHCSA. Being a "Windows guy" is pointless, everyone and their momma knows Windows and its a dead end. If you want to advance you need to learn Linux immediately. Once you have that and a good foundation in virtualization (that's where the VCP comes in), I'd move on to studying Openstack(you can home lab this as well). Its a really easy transition from VMWare and its super niche, so that skillset will help you standout. Then you're ready to get into Kubernetes, Docker and automation/IaaC(Puppet, Terraform and Ansible are probably the best places to start). Even if you have no real experience with those tools and just studied it at the surface level, you're still in better shape than 99.9999% of the market and with even one year of experience you can demand almost any salary you want.
I''ve been thinking of getting into sales but not sure if i really want to incase i get pigeonholed and cant mote into a more technical roles down the line