It is good to have a plan in mind, you feel more in control of what you're trying to achieve.
Well done on the start you've made. She is probably working you out right now wondering why you arent "playing" anymore. But keep it up, even if she protests. She will know she is still safe.
I moved on with the GW by just going by my own instinct with the timings but there is no time like the present! I began next to the cot/crib like you currently are, and my next step was to sit on the floor at the end of the cot (get some cushions since you might be there a while to begin with
). She may peer over the end of the crib looking for you and you may need to do some laying back down. But try to ignore her first unless she really cries out in distress as she might just work it out on her own. From there, after a few days you can either move to sit by the door or move straight out of the room. I had to sit by the door for that next stage. Once you get to the stage where you are out of the room after putting her down you can just wait by the door and go back in if she cries out in distress. If she is just standing up or crawling around, leave her to it. We have mirrored wardrobe doors in DS' room so I would leave the door slightly ajar and watch him through them!
There are still occasions when putting him down at night where we will have to go back in but overall he self settles as a result of this method.
The key thing for me was to know that he really was ready to go to bed, meaning he had been up for the appropriate length of A time. I now have this down to a fine art going by the BW guidelines for his age and he is off in minutes. If I attempt to put him down any earlier he won't have a bar of it! There are times where he wont reach the full A time length though e.g. after a swim lesson or if he is ill so keep an eye on premature signs of tiredness too.
Keep up the good work, you can do this!