There is many things Beginners don't know. But almost always they make this same mistake as You.
Don't pack everything on one ship
Build 1-2 ships with sensors, some with AMM and majority with just FC and missile launchers. It will be 3 classes of ships.
It make Your fleet less expensive. For example You don't need more then 3 independent sensor platforms in a task group. One is enough and two more are only backups that You will use if first is destroyed. Also, You don't need AMM on every sheep. SPECIALIZE
If You have everything on ONE ship, then You will have many unneeded (and expensive) equipment that will take place where could missiles launchers be located (You never have too many of them
).
EDIT:
IMHO You shouldn't use reduced-size launchers. Sometimes only way of defeating enemy is by wave-after-wave of missiles.
Also for ASM i prefer size 6 missiles. But it doesn't mean that its right
There is no Right or Wrong. You just Win or Die Trying
If i see right, Your ASS have a range of 10mkm?! Then Your Missiles and MFC have range 4.5 times bigger then range on which You can detect enemy :/ Not good.
For main fleet ASS i use (at the beggining) like 200mkm... R100
For MFC(missile fire control) try 120% of missiles range, as enemy can (and will) use ECM.
ASMissiles, i Think they Are good for beginner.
EDIT2:
AMMissiles? They are not efficient. Look at the range in which You can detect incoming generic missiles (size 6)(it's less then resolution 1). Its small. It should be bigger. Also AMM need to be fast but short range. Yours are too slow, and have much too big range. They TH for incoming 10 000 km/s (slow for a missile) is only 32%
[I don't know more details as i never use AMM
- for more fun]