切る => Give up, stop... N3
Happens next
切る/切れる/切れない => to do something completely to the end/unable to do; too much to finish/complete N3
と思っている => Plan to do something N4
Plan
ようと思う/ようと思っている => thinking of doing; planning to ~ N3
[切「き」]れない => Can't finish/complete A N3
Potential, Possibility
と思う => I think N5
と([思「おも」]う、[言「い」]う、[考「かんが」]える) => That A N4
Particles
かと思ったら/かと思うと => just when; no sooner than ~ N2
~かと思いきや => contrary to expectations; or so we thought, but ~ N1
Things do not match the prediction
... にと思って => To do..., to let... N2
Purpose, target
~をかわきりに(~を皮切りに)      => One after another; starting with ~ N1
…かと思ったら => just when; no sooner than ~ N2
Things do not match the prediction