Mikrotik router - how to configure NAT and 2 VLANs on one eth port?

There are 4 links on that section:

  1. http://forum.mikrotik.com/t/using-routeros-to-vlan-your-network/126489/1 - talks about various scenarios, neither of them being my case. They are showing vlan splitting per multiple ports on the same router(i’ll be using 1 port for multiple vlans instead)
  2. http://forum.mikrotik.com/t/routeros-bridge-mysteries-explained/147832/1 - discusses the concept of mikrotik bridge
  3. https://help.mikrotik.com/docs/display/ROS/Bridging+and+Switching - all the possible options for bridging and switching settings
  4. https://help.mikrotik.com/docs/display/ROS/Bridge+VLAN+Table - bridge VLAN table.

The problem is that I only have basic CCNA1 knowledge, I don’t have network architecture design skills and I also don’t know how to organize the steps to not screw up the connectivity with the router.

It will take months for me to learn VLANs in general, VLANs on mikrotik routers and how to design the solution and figure out the steps needed.

Btw, I only have a simple masquerading rule on the router.