This is what tablets and smartphones are for. Bring your own tablet and/or smartphone, keep the personal surfing personal. Nobody will ask, nobody will care... your iPad is for watching movies on the plane, reading eBooks, random surfing, etc.
Also, having written a few AUPs myself... the exact restrictions tend to be pretty well documented, and driven by security and compliance requirements that your employer would be in trouble for violating. Read the AUP in full and make sure you understand it, ask questions if needed. Those of us who have to help maintain compliance / security would much rather get a few "silly questions" than have to clean up a mess. When in doubt, use a personal device. There's absolutely no excuse not to have one.
And to the employer... think about VDI+BYOD. Move the security back into the server room, let employees use "whatever". Keeping the personal surfing out is a losing battle, no matter what your compliance requirements are.
What you are asking for is not possible due to the way markets work.
If there is a skill that takes only a few months to learn, doesn't require formal background, and then you can do meaningful projects, that skill is not worth much because just about anybody can learn it.
Pick something that is more than a simple skill (i.e. artistic aptitude, something unique), find a niche, find something that's still widely used but "out of fashion", go local (works better in a relatively "low-tech" locale), find somebody who will take on an apprentice / mentee in some area deeper than a "2-3 month learning curve".
Also, if you're already writing, they way to get better at writing is to keep writing. Start a blog or two, volunteer to write documentation for a non-profit or open source project or similar, use that as a portfolio to find better paying writing work.
Speaking of non-profits - volunteering with one is a great way to network, find somebody who might pay you for the skills you're using as a volunteer, etc.
There must be more to life than having everything. -- Maurice Sendak