EA Open Order by time + Trailing Stopp + Set Sell Stopp

Hi,

I need an EA für MT5 with the following function:

WHEN Broker Time = 9.30 Uhr THEN OPEN Order

long / short = sell

Symbol = b

Lot-Size = c

Trailing Stopp = d

Stopp-Loss = e

Magic Number = f

comment = g

WHEN Broker Time >= 13.00 Uhr THEN

WHEN Stopp-Loss >= Break Even THEN do nothing

WHEN Stopp-Loss <= Break Even THEN close order

WHEN Order is closed by Stopp-Loss (modified by Trailing Stopp) AND it is before 12.30 Uhr Broker Time THEN

Open 5 Sell Stopp Order

long / short = like order above

symbol = like order above

Lot-Size = 20 % from Order above

Trailing Stopp = h

Stopp-Loss = llike order above

Magic Number = i

comment = k

sell stopp point = price of order above + m

WHEN Broker Time >= 13.00 Uhr THEN Close all Sell Stopp Orders

WHEN Broker Time >= 13.00 Uhr THEN (same as above)

WHEN Stopp-Loss >= Break Even THEN do nothing

WHEN Stopp-Loss <= Break Even THEN close order

Variables

b = choose Symbol, like EURUSD or EURGBP

c = choose Lot-Size

d = Trailing Stopp as Number, like 60

e = Stopp-Loss as Number

f = Magic Number as Numer and Letters (if possible)

g = Comment as Numer and Letters (if possible)

h = Trailing Stopp as Number, like 60

i = Magic Number as Numer and Letters (if possible)

k = Comment as Numer and Letters (if possible)

m = Number; each of the 5 orders should have a field for a own

I never have build an EA. So please help me, if there is a logical mistake in the Code-Idea.