I have 10 project ideas but I am not sure where to start.

Number One

Commie-Cola, a refreshing blast of Tsar Bomba

Number Two

A 5th-6th generation fighter jet, It will be hard (I have little experience with jets)

Number Three

A World War 1 bi-plane bomber/fighter

Number Four

Another tank(modern)

Number five

A Yuge and Tremendous Warship

Number 6

Some artillery stuffs

Number 7

A ZEPPELIN that has armour, big stuffs, and many capabilities

Number 8

Railguns oh my

Number 9

Start the prototyping phase of my KR.760 project

Number 10

Some meme-ish stuff(BEPIS)

So what should I start on? These are all the ideas that I will be open to work on.