congratulations on the first shave!
you will get more feedback with a straight razor, esp. light one like this one, but this is good thing - it improves your technique much faster. i think the usual advice is go slowly, i.e. start with your sideburns and cheeks with the grain and slowly expand the area. be careful with the angle of the razor - vary it a bit and you will find where it needs to be. also don't worry about too close of a shave as you start - it will come with time and the shaves will be decent anyways. a bit of momentum is needed, i.e. start moving the blade a little further away from the hair, not from it resting against the hair. usually the subsequent shaves get better, if they don't and you think the razor needs to be sharper just let me know and i'll be happy to look at it and make it even sharper (i don't like them extremely sharp as they start loosing in smoothness, perhaps need to get better at honing, but in any case i have shaved several times with it and found no problem with the shave)
hang in there
