Bedime for 9.5 month old

[OhSoTotallyLost]

I'm really struggling to get my son to sleep, it's taking me hours and I'm wondering if I'm trying too early or too late?

Wake up - between 6am-7am
Morning nap - 9am for between 45 mins and 1.5 hours
Lunchtime nap - 1pm for about 2 hours

I have a toddler who is in bed for 7pm so have tried putting him down then too (by down I mean feeding and attempting to rock to sleep...) but he never feeds to sleep and just tries to jump out of my arms. If I put him in cot he cries and as he shares room with his brother I can't (and wouldn't) leave him. Should I be keeping him up longer? He always seems really tired so worrying about him becoming overtired too. Need to get the timing right so I can work on how I get him to sleep! Thanks for any help.

Personally I wouldn't keep him up longer.. Have you tried pushing his afternoon nap back a little in case he is actually a little overtired by bedtime? Just a thought even though it sounds crazy to have him napping later I have heard it can work!

My 10.5mo DS's schedule is:

Wake up - 7.00ish
Nap - 10.00 for about an hour
Nap - 2.00 for about 1.5 hours
Bed - 6.30

So we seem to have roughly fallen into him being awake no more than about 3 hours.

Thanks I'll give it a go although my worry with that is that I'll have to wake him early to collect toddler from nursery... he wakes up after 40 mins so I think he probably is overtired but I can't get him to sleep earlier with a toddler running around.