If you are happy with your position on the bike (saddle height and reach and pedals/cleats) then my understanding would be that the next thing to look at is your reach to the handlebars.
If you are straight armed then in my limited experience this says your stem is too long so you'd need to look at changing this for a shorter one but if you also say that the bike is too small for you, that does seem at odds with this?
Is it a case that perhaps you are not able/used to flexing more at the waist to give you that reach i.e. you are cycling in a more upright position which reduces your reach? It would be worth seeing if you can find a friend or someone on here local to take an objective view of your position on the bike and help you to make some adjustments. If not, set up a camera on a time delay setting and then sit on the bike and see how you "look" in terms of position?
Hopefully food for thought?
If you are straight armed then in my limited experience this says your stem is too long so you'd need to look at changing this for a shorter one but if you also say that the bike is too small for you, that does seem at odds with this?
Is it a case that perhaps you are not able/used to flexing more at the waist to give you that reach i.e. you are cycling in a more upright position which reduces your reach? It would be worth seeing if you can find a friend or someone on here local to take an objective view of your position on the bike and help you to make some adjustments. If not, set up a camera on a time delay setting and then sit on the bike and see how you "look" in terms of position?
Hopefully food for thought?