Tips from a relative beginner.
Pressure and angle are either your friend or your foe, depending how you apply a combination of both.
Use minimal pressure and simply resign yourself to not expect a remarkable shave for a few weeks absolute minimum. (I'm still nowhere near happy with what I'm accomplishing months into it, yet am having flashbulb moments and improving my skill and quality of shave)
You will hear the blade working, so kill the fan/water/radio/any other noise source so you can listen to the blade and use it as a guide as to the right angle.
You will cut yourself at first, stypic pens/alum sticks help, so does showering before and after shaving (my technique is to shower and wash the face, clean teeth and if required, hair first, when finished, get out and shave now the brush has soaked for a few minutes in hot water, then when finished, shower again to finish the rest of the body, clean up soap in the nostrils/ears and arrest bleeding and get out to apply a after shave cream/balm of some type, read not that cheap shit you find in the supermarkets)
If you can find a cheap schick krona on eBay, you will get a decent vintage razor that is mild, so will be more forgiving.
You will notice your technique improve, as you make less passes and a better shave to boot.
When it comes to lather, build it up for a good minute minimum.
Use more product is the best tip I can offer here.
Clean the razor multiple times so it does not jam and also aids in keeping the later wet when you hit a new section.
Reapply later if what you've already applied is dry/insufficient.
Some recommend just practising lathering to get a feel of that aspect alone, as it is what will provide protection and lubrication, so is important.
Good luck and keep us updated as to your progress and feel free to hit us up with any questions.