For you now the most important thing is that you are in a new arena shard.
Level throwaway characters to level 28 and see if you are in a new shard. You have hoarded for while but if you levelled up to 28 and rushed to 46 you could possibly find yourself behind.
When your throwaway account appears in arena at rank 3k or below you are probably in on day one. If you are in a ten day old shard your hoarding is 100% negated.
Second thing is that when you are levelling here is a list of a few early nodes that drop gear that there can be a shortage of later on. If you are spending 5k energy and you don't have anything obvious to spend the energy on here are some suggestions.
LS 1 C Mk 1 Baw armour mod there's a semi coming gear viii/ix/x/do piece that needs 8 of these
Ls 3b mk 1 sienaar holo projector, comes up occasoonally, is a part of stun guns which mwny characters need in gear viii-x pieces
Ls 3c mk 1 blastech weapon mod, come up occasionally later on
Ds 3a mk 3 thermal detonators there's gear ix to xi pieces that need 40 of these.
Third in your arena team raid Han at 5 star would do better than boba.
Jyn is an awesome raid character the tmr makes rancour go real easy once you are gear x or so.
Fleet arena is easier than normal arena, if you can regularly finish first in both you will hold your advantage. One benefit you have is that you are doing raids and the aat raids drop currency to level up your ships. Assuming you have been doing this you will have enough currency to level up your ships as much as you can.
One good rule is that your best pilots are your best ships early on. Biggs has a great ship. By hoarding so you can jump to more than level 40 you are actually making things slightly harder for you are you will only get one character from gw store to 7 stars before you hit level 60.
Biggs has an awesome ship, tfp fotfp Vader boba are good too and synergises well with Biggs. Vader and boba are hard to farm their ships so don't count on getting them easily.
