From personal experience, start the tren at 200mg/week then increase to avoid tren related sides and keep them minimal.
For me 0mg to 400mg gives me night sweats at about 2 weeks in and anxiety.
Also, taper the test and watchout with the hcg and your leydig cells.
And for lean mass. High potein and either moderate or minimal carbs, while keeping your efa's high but within your caloric range. About 500 cals or so above maintenance.
And clen. You don't need it. Another substance added to the mix and you are asking for more health issues.