Right then here goes.
You need to get a grip and identify what is a neutral conductor, what is switch live and what is a permanent live.
The loop in method
From you junction box:
Take Permanent live (brown) to light fitting, terminating at either a ceiling rose loop or a connection block, this is not the live terminal at the light.
Take the neutral(blue) form the junction box and terminate at neutral at first light.
Then earth and terminate at earth terminal.
Please note the live terminal of light one is still empty.
From light one we then follow as below to light two.
(Brown/Perm live to loop, Blue/Neutral to Neutral, earth to earth)l
Note also no conductor is in the live side of fitting.
Then back to light one from light one we run our twin and earth to the switch, the blue core is now sleeved brown to indicate it not a neutral but now a switched live.
The brown core is still a permanent live and the earth is still earth.
At light one we terminate brown core (perm live) to the loop at rose or terminal block previously mentioned.
This is then terminated at common of switch.
The blue core with brown sleeve (switch live) is terminated at L1 at the switch for first light, the other end at light one is then terminate in the live terminal.
This can then be repeated for light two.