Need Wiring diagram to Help Rewiring a Bedroom and Bathroom to prepare for smart home system
Bathrooms

Bathroom fixed loads like lighting and fan can be served by any convenient circuit. 

With the bathroom receptacles, you have two choices. 


Many things, one bathroom:  The circuit serving receptacles in one bathroom can only serve other loads (fixed loads, lights, fan) in that same bathroom.  or...
Many bathrooms, only receptacles:  A circuit may serve receptacles in any number of bathrooms, but it can serve only receptacles and only in bathrooms. 


You can go either way. 

Switched receptacles

When having split receptacles (one unswitched, one switched)... the usual way that will be most understandable by "the next guy", and keep box fill sane, is to do switched receptacles is off the same circuit that powers the unswitched receptacles.  So in that case, you connect 12/3 between the two split receptacles, and from one split receptacle to the switch. Remember, you need to carry /3 to a switch loop because you must bring neutral in a switch loop.  You cannot use neutral from the other circuit!!!

Because you will have two different circuits in the same box, you must be very careful not to mix them.  You might even consider putting this switch in a different junction box, to remove all risk of confusion.

Having made the /3 connections between the two receptacles and the switch, you now can supply power in any of these locations - or really, anywhere else in the circuit.  Since I would be worried quite a lot about box fill in switch #1, I would consider feeding power into the receptacle circuit at the near receptacle. 

Off the far receptacle (or anywhere in the circuit), you then continue with 12/2 cable carrying always-hot and neutral to other outlets. 

The second way to do it is to put these switched sockets on the lighting circuit.  In that case, the switch box would be all one circuit and that would ease box fill there.  But now you are running two complete circuits to the switched/split receptacles, although you can use /2 cable.  You will need to break off both the hot and neutral tabs and take care to keep separation of circuits.  Which will make box fill worse at the receptacles. 

Closet lamp #4

Given the proximity of closet lamp #4 to a receptacle location, consider powering closet lamp #4 off the receptacle circuit instead of the lighting circuit. This will need #12 wire because ALL wiring in a 20A circuit must be #12, no exceptions.  It is totally legal to do this, it's just not recommended to put lighting on receptacle circuits generally, because if you overload a socket, the breaker trip will plunge you into darkness.  That's not a big issue on a single closet. 

By the way, no receptacles allowed in closets, and lamps can't be where clothing can touch them. 

Box fill

Switches 1 and 3 are going to have a rather significant box-fill problem. I believe we discussed this six months ago on the three-fan circuit.  Be careful selecting your boxes so they are large enough, I'm fond of 4-11/16 square steel boxes and either 1-gang or 2-gang mud rings.